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Letters in Heat and Mass Transfer最新文献

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Important announcement journal name change 重要公告，期刊名称变更
Letters in Heat and Mass Transfer Pub Date : 1982-11-01 DOI: 10.1016/0094-4548(82)90013-3
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引用次数: 0
A note on the logarithmic velocity profile in turbulent boundary layers 湍流边界层中对数速度剖面的注释
Letters in Heat and Mass Transfer Pub Date : 1982-11-01 DOI: 10.1016/0094-4548(82)90022-4
S. Byggstøyl, L.R. Saetran
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引用次数: 0
A correlation for maximum heat transfer coefficient between a horizontal tube and a gas-solid fluidized bed of small particles 水平管与小颗粒气固流化床之间最大传热系数的相关性
Letters in Heat and Mass Transfer Pub Date : 1982-09-01 DOI: 10.1016/0094-4548(82)90007-8
N.S. Grewal
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引用次数: 6
New thoughts on the mechanics of gas-liquid slug flow 关于气液段塞流力学的新思考
Letters in Heat and Mass Transfer Pub Date : 1982-09-01 DOI: 10.1016/0094-4548(82)90002-9
David Moalem Maron, Naseem Yacoub, Neima Brauner
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引用次数: 14
On the Tchen's theory of discrete particles dispersion: Can dense discrete particles disperse faster than fluid particles? 论陈氏离散粒子弥散理论:密集的离散粒子是否比流体粒子弥散得快?
Letters in Heat and Mass Transfer Pub Date : 1982-09-01 DOI: 10.1016/0094-4548(82)90010-8
G. Gouesbet, A. Berlemont, A. Picart
{"title":"On the Tchen's theory of discrete particles dispersion: Can dense discrete particles disperse faster than fluid particles?","authors":"G. Gouesbet,&nbsp;A. Berlemont,&nbsp;A. Picart","doi":"10.1016/0094-4548(82)90010-8","DOIUrl":"10.1016/0094-4548(82)90010-8","url":null,"abstract":"<div><p>In the framework of the Tchen's theory of the dispersion of discrete particles in turbulrnt flows, it is shown that discrete particles can disperse faster than fluid particles, even if the Lagrangian r.m.s. velocity for discrete particles is smaller than the Lagrangian r.m.s. velocity for fluid particles. Examples are given, assuming a Frenkiel's family of Lagrangian correlations for fluid particles velocities.</p></div>","PeriodicalId":100875,"journal":{"name":"Letters in Heat and Mass Transfer","volume":"9 5","pages":"Pages 407-419"},"PeriodicalIF":0.0,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0094-4548(82)90010-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87733318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
A shortcoming of the explicit solution for the binary alloy solidification problem 二元合金凝固问题显式解的缺点
Letters in Heat and Mass Transfer Pub Date : 1982-09-01 DOI: 10.1016/0094-4548(82)90011-X
D.G. Wilson, A.D. Solomon, V. Alexiades
{"title":"A shortcoming of the explicit solution for the binary alloy solidification problem","authors":"D.G. Wilson,&nbsp;A.D. Solomon,&nbsp;V. Alexiades","doi":"10.1016/0094-4548(82)90011-X","DOIUrl":"10.1016/0094-4548(82)90011-X","url":null,"abstract":"<div><p>It is shown that in certain cases the explicit similarity solution for the binary alloy solidification problem exhibits an artificial mushy zone. Although this solution satisfies all of the explicit mathematical conditions of the problem, there can exist a region just in front of the solid/liquid interface where the temperature and concentration it defines lie in the region between the solidus and liquidus curves. A numerical example is given which shows the mushy region, and a condition on the data is derived whose satisfaction will guarantee its occurrence. The anomaly is interpreted to be a shortcoming of the mathematical formulation, which does not explicity state all of the assumptions.</p></div>","PeriodicalId":100875,"journal":{"name":"Letters in Heat and Mass Transfer","volume":"9 5","pages":"Pages 421-428"},"PeriodicalIF":0.0,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0094-4548(82)90011-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78559906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 18
A transient one-dimensional inverse heat conduction problem with overspecified data at one boundary 在一个边界上具有过指定数据的瞬态一维反热传导问题
Letters in Heat and Mass Transfer Pub Date : 1982-09-01 DOI: 10.1016/0094-4548(82)90001-7
L.C. Chow, K.C. Woo, D.M. Green
{"title":"A transient one-dimensional inverse heat conduction problem with overspecified data at one boundary","authors":"L.C. Chow,&nbsp;K.C. Woo,&nbsp;D.M. Green","doi":"10.1016/0094-4548(82)90001-7","DOIUrl":"10.1016/0094-4548(82)90001-7","url":null,"abstract":"<div><p>For one-dimensional transient heat conduction, a procedure is developed to estimate the temperature at one boundary when both the temperature and heat flux are measured at the other boundary. The Laplace transform technique is employed and the inverse Laplace transform is carried out by using a novel technique. Exact and noisy data are used to infer the unknown boundary temperature. It is shown that the present procedure is accurate and also stable to measurement errors.</p></div>","PeriodicalId":100875,"journal":{"name":"Letters in Heat and Mass Transfer","volume":"9 5","pages":"Pages 325-332"},"PeriodicalIF":0.0,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0094-4548(82)90001-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78907317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Periodic heat transfer through an inhomogeneous medium 通过非均匀介质的周期性热传递
Letters in Heat and Mass Transfer Pub Date : 1982-09-01 DOI: 10.1016/0094-4548(82)90008-X
A.K.S. Thakur
{"title":"Periodic heat transfer through an inhomogeneous medium","authors":"A.K.S. Thakur","doi":"10.1016/0094-4548(82)90008-X","DOIUrl":"10.1016/0094-4548(82)90008-X","url":null,"abstract":"<div><p>One dimensional heat conduction equation has been analysed for periodic heat transfer in an inhomogeneous bounded medium. Exact analytical solutions for some typical thermal conductivity profiles have been obtained. Also an approximate solution has been attempted for the first time for heat conduction problems which is applicable for any arbitrary variation of thermal conductivity, Numerical appreciation for a parabolic thermal conductivity profile shows that results from approximate approach are in excellant agreement with those obtained by the exact analytical approach.</p></div>","PeriodicalId":100875,"journal":{"name":"Letters in Heat and Mass Transfer","volume":"9 5","pages":"Pages 385-394"},"PeriodicalIF":0.0,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0094-4548(82)90008-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78904634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 17
Numerical study of natural convection between vertical cylindrical tubes 垂直圆柱管间自然对流的数值研究
Letters in Heat and Mass Transfer Pub Date : 1982-09-01 DOI: 10.1016/0094-4548(82)90004-2
K. Chu , A. Frohn
{"title":"Numerical study of natural convection between vertical cylindrical tubes","authors":"K. Chu ,&nbsp;A. Frohn","doi":"10.1016/0094-4548(82)90004-2","DOIUrl":"10.1016/0094-4548(82)90004-2","url":null,"abstract":"","PeriodicalId":100875,"journal":{"name":"Letters in Heat and Mass Transfer","volume":"9 5","pages":"Pages 351-361"},"PeriodicalIF":0.0,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0094-4548(82)90004-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88591669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A note on the equation of heat transfer 关于传热方程的注解
Letters in Heat and Mass Transfer Pub Date : 1982-09-01 DOI: 10.1016/0094-4548(82)90005-4
L.S. Wang
{"title":"A note on the equation of heat transfer","authors":"L.S. Wang","doi":"10.1016/0094-4548(82)90005-4","DOIUrl":"10.1016/0094-4548(82)90005-4","url":null,"abstract":"<div><p>Liquids with properties <em>β</em>pv/c<sub>p</sub> ⪡ 1 and p<sup>2</sup>v<em>κ</em>/c<sub>p</sub>T ⪡ 1 are defined as “incompressible liquids”. The compression work in motion of incompressible liquid is negligibly small. The change in the internal energy of incompressible liquids with respect to the temperature is, however, proportional to c<sub>p</sub>. Motions of perfect gases in open systems under appropriate conditions and in closed systems with no net heat addition (or removal) are prescribed by the energy equation with c<sub>p</sub> as the appropriate specific heat. Otherwise, either no reduction is possible or both c<sub>p</sub> and c<sub>v</sub> may become the appropriate specific heats in the energy equation.</p></div>","PeriodicalId":100875,"journal":{"name":"Letters in Heat and Mass Transfer","volume":"9 5","pages":"Pages 363-370"},"PeriodicalIF":0.0,"publicationDate":"1982-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0094-4548(82)90005-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89580782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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