陶文铨
传热强化及数值模拟方法和应用
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- 姓名:陶文铨
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学术头衔:
博士生导师
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学科领域:
工程热物理
- 研究兴趣:传热强化及数值模拟方法和应用
1939年3月生,浙江绍兴人,教授,博士生导师,1962年西安交大本科毕业,1966年西安交大研究生毕业(导师杨世铭教授),1980-1982赴美国明尼苏达大学机械系传热实验室进修,师从E M Sparrow 教授。国家级有突出贡献专家,国家级教学名师。现任教育部高等学校热工课程教学指导分委员会主任委员,教育部能源动力学科教学指导委员会副主任委员,中国工程热物理学会副理事长、传热传质专业委员会委副主任委员,西安交通大学学报(自然科学版)主编,国际杂志Numerical Heat Transfer 编委,International Journal of Heat Mass Transfer ,International Communication in Heat Mass Transfer 的Associate Editor, Progress in Computational Fluid Dynamics 的编委。
长期从事传热强化及数值模拟方法和应用的科研与教学,获科研成果奖多项,包括国家自然科学二等奖(公示中)1项,国家级首届教学名师奖,中国高等学校科技进步一等奖1项,电力工业部科技进步二等奖1项,国家级优秀教学成果特等奖1项,一等奖1项、二等奖2项;出版专著与教材9部。发表科研论文250余篇:国际杂志70余篇,国际会议40余篇,国内重要期刊物130余篇,其中被SCI检索70余篇,被EI检索110余篇。论著已经被国内外期刊论文引用1200余次。获国家发明专利5项。
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【期刊论文】NUMERICAL DESIGN OF EFFICIENT SLOTTED FIN SURFACE BASED ON THE FIELD SYNERGY PRINCIPLE
陶文铨, Y. P. Cheng, Z. G. Qu, W. Q. Tao, and Y. L. He
Numerical Heat Transfer, Part A, 45: 517-538, 2004,-0001,():
-1年11月30日
In this article, a numerical investigation of the flow and heat transfer in a three-row finnedtube heat exchanger is conducted with a three-dimensional laminar conjugated model Four types of fin surfaces are studied; one is the whole plain plate fin, and the other three are of slotted type, called slit 1, slit 2, and slit 3. AU four fin surfaces have the same global geometry dimensions. The three slotted fin surfaces have the same numbers of strips, which protrude upward and downward alternatively and are positioned along the flow direction according to the rule of "front coarse and rear dense." The difference in the three slotted fins is in the degree of "coarse" and "dense" along the flow direction. Numerical results show that, compared to the plain plate fin, the three types of slotted fin all have very good heat transfer performance in that the percentage increase in heat transfer is higher than that in the friction factor. Among the three siotted fin surfaces, slit 1 behaves the best, followed by slit 2 and slit 3 in order. Within the Reynolds number range compared (from 2,100 to 13,500), the Nusselt number of slit 1 is about 112-48% higher than that of the plain plate fin surface under the identical pumping constraint. An analysis of the essence of heat transfer enhancement is conducted from the field synergy principle, which says that the reduction of the intersection angle between the velocity and the temperature gradient is the basic mechanism for enhancing convective heat transfer. It is found that for the three comparison constraints the domain-average synergy angle of slit 1 is always the smallest, while that of the plain plate fin is the largest, with slit 2 and slit 3 being somewhat in between. The results of the present study once again show the feasibility of the field synergy principle and are helpful to the development of new types of enhanced heat transfer surfaces.
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【期刊论文】Refinement of the convective boundedness criterion of Gaskell and Lau
陶文铨, Hou Ping-Li, Tao Wen-Quan and Yu Mao-Zheng
Engineering Computations Vol. 20 No.8, 2003,-0001,():
-1年11月30日
Abstract Based on the normalized variable diagram, the weakness of the Gaskell and Lau's convective boundedness criterion (GL-CBC) is revealed by numerical example. By careful consideration of the smoothness of the normalized variable variation pattern, more rigorous constraints on the interface value interpolation are found. A new CBC is thus proposed, whose feasibility and correctness are demonstrated by the inspection of ten existing bounded schemes and a numerical example.
Stability (, control theory), ,, Numerical analysis,, Convection
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陶文铨, Y. L. He and W. Q. Tao, T. S. Zhao, Z. Q. Chen
Numerical Heat Transfer, Part A, 44: 375-397, 2003,-0001,():
-1年11月30日
The steady natural-convection heat transfer in a tilted cylindrical envelope with constant but different end temperatures (300 and 80K) is investigated numerically with the lateral surface being adiabatic. The inner diameter of the envelope is 27.8mm and its length/diameter ratio is 9. This is supposed to be a simplified model for the pulse tube in a pulse-tube cryocooler when the pulse tube is positioned at different orientations. The problem studied is a typical nonlinear one in that the thermophysical properties of the working fluid (helium) vary significant from the hot end to the cold end. Three-dimensional steadystate governing equations are solved with fully variable thermal properties. The high nonlinearity of the problem leads to many special characters of the convergence process, and a very peculiar convergence process is found. Initial-field dependence is also revealed. After quite a few preliminary computations, a series of convergence criteria are proposed. Grid-independence examination is conducted for inclination angle of 110°. It is found that the grid system of 20(r)×20(ψ)×80(Z) with grids in the z direction being nonuniformly positioned can obtain a grid-independent solution. Preliminary computations are conducted for the horizontal position with 70℃ of end temperature difference. The predicted velocity and temperature distributions are compared with available measured data. Good agreement between the predicted and measured results provides strong support for the physical model and numerical treatments developed in this article.
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【期刊论文】DISCUSSION ON NUMERICAL STABILITY AND BOUNDEDNESS OF CONVECTIVE DISCRETIZED SCHEME
陶文铨, B. Yu, W. Q. Tao, D. S. Zhang, and Q. W. Wang
Numerical Heat Transfer, Part B, 40: 343-365, 2001,-0001,():
-1年11月30日
Existing methods for analyzing the stability of a discretized scheme for convection.diffusion terms are usually based on five assumptions, i.e., one-dimensional, linear, first kind of boundary condition, source term free, and uniform grid system. In this article we examine numerically whether deviation from one of the assumptions may enhance the stability of the discretized scheme. The second part of the article is devoted to the criterion of convective boundedness. It is shown that the convective boundedness criterion (CBC) proposed by Gaskell and Lau is only a sufficient condition. Another region in the normalized variable diagram is proposed within which any scheme defined is convectively bounded. Three new bounded high-resolution schemes defined in this region, SBECBC1, 2, and 3, are proposed, and numerical experiments for two advection problems and one diffusion-convection problem demonstrate the high, resolution ability of the SBECBCs for a sharp change in scalar profile.
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【期刊论文】A MODIFIED PRESSURE-CORRECTION SCHEME FOR THE SIMPLER METHOD, MSIMPLER
陶文铨, Bo Yu and Hiroyuki Ozoe, Wen-Quan Tao
Numerical Heat Transfer, Part B, 39: 435-449, 2001,-0001,():
-1年11月30日
A new method is proposed to accelerate the convergence rate for the SIMPLER algorithm by arti
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陶文铨, L. B. WANG and W. Q. TAO†
Int. J. Heat Mass Transfer. Vol. 38, No.16, pp. 3053-3063, 1995,-0001,():
-1年11月30日
The periodically fully developed laminar heat transfer and fluid flow characteristics of an array of uniform plate length, aligned at angles to the air flow direction have been investigated numerically in the range Re=50-2300 using body-fitted coordinate system. Multisurface transformation is used in the grid generation in order to retain the periodic corresponding relations of the surfaces or lines in both physical and computational spaces. The computed results exhibit good agreement with the experimental data available in the literature. The results also show that both the intensity of heat transfer and the pressure drop increase with the increases in oblique angle and plate length.
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陶文铨, P.-W. Li, W.-Q. Tao
Warme-und Stoff,-0001,():
-1年11月30日
Three practices of treating outflow boundary condition were adopted in computations for convective heat transfer of a two-dimensional jet impinging in a rectangular cavity. The three practices were local mass conservation method, local one-way method and fully developed assumption. The numerical solutions of the three methods were compared with test data obtained via. naphthalene sublimation technique. It was found that the fully developed assumption was inappropriate, and the local one-way method could provide reasonably good results for the cavity bottom, while for the lateral wall the results with this method qualitatively differed from the test data. The solution with the local mass conservation method was the best. It thus suggested that for a problem expected with a strong recirculating flow at the exit of the computation domain, the local mass conservation method be adopted to treat the outflow boundary condition.
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陶文铨, R. C, Xin and W. Q. Tao
Numerical Heat Transfer, vol. 14, pp. 465-481, 1988,-0001,():
-1年11月30日
Fluid flow and heat transfer in two-dimensional wavy channels of uniform cross-sectional area were analyzed numerically for constant-property Laminar flow. The channel walls were maintained at constant temperature. Streamwise pertodic geometry caused the flow and heat transfer to repeat periodically far downstream of the channel entrance. Computations were performed for different Reynolds numbers and geometric parameters. Prandtl number was kept constant (0.707). The whole solution domain was divided into five regions, and different coordinates were used for each region. The periodic boundary conditions were implemememted by mutual repiacements of field values at the two end regions. It was found that both Nussel: number and friction factor were greatly affected by Reynolds number and two geometric parameters.
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