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Article
Publication date: 12 April 2013

Abdelraheem M. Aly, Mitsuteru Asai and Yoshimi Sonda

The purpose of this paper is to show how a surface tension model and an eddy viscosity based on the Smagorinsky sub‐grid scale model, which belongs to the Large‐Eddy Simulation…

Abstract

Purpose

The purpose of this paper is to show how a surface tension model and an eddy viscosity based on the Smagorinsky sub‐grid scale model, which belongs to the Large‐Eddy Simulation (LES) theory for turbulent flow, have been introduced into ISPH (Incompressible smoothed particle hydrodynamics) method. In addition, a small modification in the source term of pressure Poisson equation has been introduced as a stabilizer for robust simulations. This stabilization generates a smoothed pressure distribution and keeps the total volume of fluid, and it is analogous to the recent modification in MPS.

Design/methodology/approach

The surface tension force in free surface flow is evaluated without a direct modeling of surrounding air for decreasing computational costs. The proposed model was validated by calculating the surface tension force in the free surface interface for a cubic‐droplet under null‐gravity and the milk crown problem with different resolution models. Finally, effects of the eddy viscosity have been discussed with a fluid‐fluid interaction simulation.

Findings

From the numerical tests, the surface tension model can handle free surface tension problems including high curvature without special treatments. The eddy viscosity has clear effects in adjusting the splashes and reduces the deformation of free surface in the interaction. Finally, the proposed stabilization appeared in the source term of pressure Poisson equation has an important role in the simulation to keep the total volume of fluid.

Originality/value

An incompressible smoothed particle hydrodynamics is developed to simulate milk crown problem using a surface tension model and the eddy viscosity.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 23 no. 3
Type: Research Article
ISSN: 0961-5539

Keywords

Article
Publication date: 1 April 1977

The long controversy that has waxed furiously around the implementation of the EEC Directives on the inspection of poultry meat and hygiene standards to be observed in poultry…

Abstract

The long controversy that has waxed furiously around the implementation of the EEC Directives on the inspection of poultry meat and hygiene standards to be observed in poultry slaughterhouses, cutting‐up premises, &c, appears to be resolved at last. (The Prayer lodged against the Regulations when they were formally laid before Parliament just before the summer recess, which meant they would have to be debated when the House reassembled, could have resulted in some delay to the early operative dates, but little chance of the main proposals being changed.) The controversy began as soon as the EEC draft directive was published and has continued from the Directive of 1971 with 1975 amendments. There has been long and painstaking study of problems by the Ministry with all interested parties; enforcement was not the least of these. The expansion and growth of the poultry meat industry in the past decade has been tremendous and the constitution of what is virtually a new service, within the framework of general food inspection, was inevitable. None will question the need for efficient inspection or improved and higher standards of hygiene, but the extent of the

Details

British Food Journal, vol. 79 no. 4
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 1 March 1976

In the period before Britain entered the European Community and again at the Labour Government's referendum, one factor which caused most concern in both those in favour and those…

Abstract

In the period before Britain entered the European Community and again at the Labour Government's referendum, one factor which caused most concern in both those in favour and those against entry, was the possible loss of sovereignty by the Houses of Parliament to a supra‐national body. That there would be some loss was accepted but fears that it would be anything more than minimal were discounted, and not enough to affect the lives of ordinary people. Far‐reaching changes required by some of the EEC food directives and regulations, which even if held in abeyance for the usual transitional period will have to be implemented eventually, must be causing many to have second thoughts on this. If more were needed, the embarassing situation at the recent energy conference, at which Britain, as a major oil producer, demanded a separate seat, but had to submit to the overall authority of the Community, the other members of which, figuratively, do not produce a gallon of oil between them. A shift of power from Whitehall to Brussels may not be so evident at higher levels of government, however, as in secondary legislation; the language of the departments of government.

Details

British Food Journal, vol. 78 no. 3
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 1 June 1977

The connotations, associations, custom and usages of a name often give to it an importance that far outweighs its etymological significance. Even with personal surnames or the…

Abstract

The connotations, associations, custom and usages of a name often give to it an importance that far outweighs its etymological significance. Even with personal surnames or the name of a business. A man may use his own name but not if by so doing it inflicts injury on the interests and business of another person of the same name. After a long period of indecision, it is now generally accepted that in “passing off”, there is no difference between the use of a man's own name and any other descriptive word. The Courts will only intervene, however, when a personal name has become so much identified with a well‐known business as to be necessarily deceptive when used without qualification by anyone else in the same trade; i.e., only in rare cases. In the early years, the genesis of goods and trade protection, fraud was a necessary ingredient of “passing off”, an intent to deceive, but with the merging off Equity with the Common Law, the equitable rule that interference with “property” did not require fraudulent intent was practised in the Courts. First applying to trade marks, it was extended to trade names, business signs and symbols and business generally. Now it is unnecessary to prove any intent to deceive, merely that deception was probable, or that the plaintiff had suffered actual damage. The equitable principle was not established without a struggle, however, and the case of “Singer” Sewing Machines (1877) unified the two streams of law but not before it reached the House of Lords. On the way up, judical opinions differed; in the Court of Appeal, fraud was considered necessary—the defendant had removed any conception of fraud by expressingly declaring in advertisements that his “Singer” machines were manufactured by himself—so the Court found for him, but the House of Lords considered the name “Singer” was in itself a trade mark and there was no more need to prove fraud in the case of a trade name than a trade mark; Hence, the birth of the doctrine that fraud need not be proved, but their Lordships showed some hesitation in accepting property rights for trade names. If the name used is merely descriptive of goods, there can be no cause for action, but if it connotes goods manufactured by one firm or prepared from a formula or compsitional requirements prescribed by and invented by a firm or is the produce of a region, then others have no right to use it. It is a question of fact whether the name is the one or other. The burden of proof that a name or term in common use has become associated with an individual product is a heavy one; much heavier in proving an infringement of a trade mark.

Details

British Food Journal, vol. 79 no. 6
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 1 April 1972

Language may be a treasured heritage of small comunities, all that is left to bind them together. It is often a matter of national or regional pride, keeping alive a tongue dead…

Abstract

Language may be a treasured heritage of small comunities, all that is left to bind them together. It is often a matter of national or regional pride, keeping alive a tongue dead centuries past everywhere else; in an area of the Grisons forty thousand Swiss speak the Latin Romansch, the tongue spoken by the citizens of ancient Rome, and nowhere else in the world is it heard. There are so‐called official languages; in the councils of Europe, it has always been French, which is the official language of the European Economic Community; this means, of course, that all EEC Directives and in due course, judgments of its courts, will be first delivered in French.

Details

British Food Journal, vol. 74 no. 4
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 1 May 1901

The Sanitary Committee of a certain County Council, strong with the strength of recent creation, have lately been animated by a desire to distinguish themselves in some way, and…

Abstract

The Sanitary Committee of a certain County Council, strong with the strength of recent creation, have lately been animated by a desire to distinguish themselves in some way, and, proceeding along the lines of least resistance, they appear to have selected the Public Analyst as the most suitable object for attack. The charge against this unfortunate official was not that he is incompetent, or that he had been in any way negligent of his duties as prescribed by Act of Parliament, but simply and solely that he has the temerity to reside in London, which city is distant by a certain number of miles from the much favoured district controlled by the County Council aforesaid. The committee were favoured in their deliberations by the assistance of no less an authority than the “Principal” of a local “Technical School”;—and who could be more capable than he to express an opinion upon so simple a matter? This eminent exponent of scientific truths, after due and proper consideration, is reported to have delivered himself of the opinion that “scientifically it would be desirable that the analyst should reside in the district, as the delay occasioned by the sending of samples of water to London is liable to produce a misleading effect upon an analysis.” Apparently appalled by the contemplation of such possibilities, and strengthened by another expression of opinion to the effect that there were as “good men” in the district as in London, the committee resolved to recommend the County Council to determine the existing arrangement with the Public Analyst, and to appoint a “local analyst for all purposes.” Thus, the only objection which could be urged to the employment of a Public Analyst resident in London was the ridiculous one that the composition of a sample of water was likely to seriously alter during the period of its transit to London, and this contention becomes still more absurd when it is remembered that the examination of water samples is no part of the official duty of a Public Analyst. The employment of local scientific talent may be very proper when the object to be attained is simply the more or less imperfect instruction of the rising generation in the rudiments of what passes in this country for “technical education”; but the work of the Public Analyst is serious and responsible, and cannot be lightly undertaken by every person who may be acquainted with some of the uses of a test‐tube. The worthy members of this committee may find to their cost, as other committees have found before them, that persons possessing the requisite knowledge and experience are not necessarily indigenous to their district. Supposing that the County Council adopts the recommendation, the aspirations of the committee may even then be strangled in their infancy, as the Local Government Board will want to know all about the matter, and the committee will have to give serious and valid reasons in support of their case.

Details

British Food Journal, vol. 3 no. 5
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 1 May 1972

The New Year will see Britain a member of the largest multi‐national free trade area in the world and there must be few who see it as anything less than the beginning of a new…

Abstract

The New Year will see Britain a member of the largest multi‐national free trade area in the world and there must be few who see it as anything less than the beginning of a new era, in trade, its trends, customs and usages and especially in the field of labour, relations, mobility, practices. Much can be foreseen but to some extent it is all very unpredictable. Optimists see it as a vast market of 250 millions, with a lot of money in their pockets, waiting for British exports; others, not quite so sure, fear the movement of trade may well be in reverse and if the increasing number of great articulated motor trucks, heavily laden with food and other goods, now spilling from the Channel ports into the roads of Kent are an indication, the last could well be true. They come from faraway places, not all in the European Economic Community; from Yugoslavia and Budapest, cities of the Rhineland, from Amsterdam, Stuttgart, Mulhouse and Milano. Kent has had its invasions before, with the Legions of Claudius and in 1940 when the battle roared through the Kentish skies. Hitherto quiet villagers are now in revolt against the pre‐juggernaut invasion; they, too, fear more will come with the enlarged EEC, thundering through their one‐street communities.

Details

British Food Journal, vol. 74 no. 5
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 1 January 1982

Maintaining an adequate nutritional state, important at all times, is never more so than during the dark days of Winter. The body reserves are then taxed in varying degrees of…

Abstract

Maintaining an adequate nutritional state, important at all times, is never more so than during the dark days of Winter. The body reserves are then taxed in varying degrees of severity by sudden downward plunges of the thermometer, days when there is no sight of the sun, lashing rains and cold winds, ice, frost, snow, gales and blizzards. The body processes must be maintained against these onslaughts of nature — body temperatures, resistance against infections, a state of well‐being with all systems operating and an ability to “take it”. A sufficient and well balanced diet is vital to all this, most would say, the primarily significant factor. The National Food Surveys do not demonstrate any insufficiency in the national diet in terms of energy values, intake of vitamins, minerals and nutrients, but statistics can be fallacious amd misleading. NFS statistics are no indication of quality of food, its sufficiency for physiological purposes and to meet the economic stresses of the times. The intake of staple foods — bread, milk, butter, meat, &c., — have been slowly declining for years, as their prices rise higher and higher. If the Government had foreseen the massive unemployment problem, it is doubtful if they would have crippled the highly commendable School Meals Service. To have continued this — school milk, school dinners — even with the financial help it would have required would be seen as a “Supplementary Benefit” much better than the uncontrolled cash flow of social security. Child nutrition must be suffering. Stand outside a school at lunch‐time and watch the stream of children trailing along to the “Chippie” for a handfull of chip potatoes; even making a “meal” on an ice lollie.

Details

British Food Journal, vol. 84 no. 1
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 1 April 2003

Olukunle Iyanda

This paper is a study of the effect of the Structural Adjustment Programme (SAP) on marketing practices of manufacturing industry in Nigeria. Data for the study were collected…

1582

Abstract

This paper is a study of the effect of the Structural Adjustment Programme (SAP) on marketing practices of manufacturing industry in Nigeria. Data for the study were collected through a questionnaire and depth interview of chief executives or senior managers. The data were analysed on a “before” and “after” basis using a Wilcoxon Signed‐Rank Test. The major findings of the study were that manufacturing industries: adjusted only their marketing operations, not their production structure; attained higher sales, productivity and profitability; did not increase their exports, use of local materials, or employment. The study concluded that SAP was not capable of achieving the objectives envisaged because of the underdeveloped characteristics of the economy. It recommended a more fundamental re‐engineering of the economy in order to achieve the desired objectives.

Details

Management Decision, vol. 41 no. 3
Type: Research Article
ISSN: 0025-1747

Keywords

Article
Publication date: 1 June 1986

The times have come down to us as the “Good Old Days”, of Edwardian elegance and grace, peace and plenty, which conceal the poverty, squalor and disease. There seemed less…

Abstract

The times have come down to us as the “Good Old Days”, of Edwardian elegance and grace, peace and plenty, which conceal the poverty, squalor and disease. There seemed less resentment from those who suffered the rigours of the times than from those of today who only know of them by repute. Life was indeed cruel to the submerged tenth of society and the homeless waifs and strays were all too real and true.

Details

British Food Journal, vol. 88 no. 6
Type: Research Article
ISSN: 0007-070X

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