谈和平
热辐射特性与传输,目标与环境红外特性,空间光学系统杂散光分析,红外辐射数值模拟等研究
个性化签名
- 姓名:谈和平
- 目前身份:
- 担任导师情况:
- 学位:
-
学术头衔:
博士生导师
- 职称:-
-
学科领域:
工程热物理
- 研究兴趣:热辐射特性与传输,目标与环境红外特性,空间光学系统杂散光分析,红外辐射数值模拟等研究
谈和平教授,博士生导师。男,汉族,中共党员,江苏无锡市人,1952年9月30日生。1976年毕业于哈尔滨工业大学动力机械系;1981年哈工大热能工程学科研究生毕业,获工学硕士学位;1985年由教育部选送赴法国学习,1989年获法国普瓦蒂埃大学博士学位。1991年起任哈工大教授。现任哈尔滨工业大学能源科学与工程学院院长、航空航天热物理研究所所长。1997年度国家杰出青年基金获得者。国务院学位委员会第四届、第五届学科评议组成员;教育部科技委第五届学部委员(工程技术一部);黑龙江省第二届学位委员会委员;中国工程热物理学会常务理事;中国航空学会动力专业分会燃烧与传热传质专业委员会委员;《工程热物理学报》、《宇航学报》、《航天器工程》编委。主要从事热辐射特性与传输,目标与环境红外特性,空间光学系统杂散光分析,红外辐射数值模拟等研究。指导硕士生29人(已毕业19人),有1人获黑龙江省优秀硕士学位论文。指导博士生16人(已毕业9人),有3人获哈工大优秀博士学位论文,1人获全国优秀博士学位论文。获航天部、航天工业总公司、国家教委科技进步二等奖各一项。研究结果在J. Quantitative Spectroscopy and Radiative Transfer,Int. J. Heat and Mass Transfer,AIAA J. Thermophysics and Heat Transfer,ASME J. Heat Transfer,Int. J. Thermal Sciences,Rev. Phys. Appl.(法国应用物理杂志),Numerical Heat Transfer,红外与毫米波学报,工程热物理学报,宇航学报等国内外核心期刊上发表论文200余篇,被SCI收录63篇,EI收录90篇。发表的论文被国内外同行他引200余篇次,其中SCI他引101篇次,国外专著他引24篇次,他引的作者分布:美国、英国、德国、法国、意大利、俄罗斯、加拿大、日本、韩国、印度、伊朗、香港等。
-
主页访问
3133
-
关注数
0
-
成果阅读
456
-
成果数
10
谈和平, L.H. Liua, *, H.P. Tana, T.W. Tongb
International Journal of Heat and Mass Transfer 44(2001)3335-3344,-0001,():
-1年11月30日
The non-Fourier effects on transient temperature response in semitransparent medium with black boundary surfaces caused by laser pulse are studied. The processes of the coupled conduction and radiation heat transfer in a one-dimensional semitransparent slab with black boundaries are analyzed numerically. The hyperbolic heat conduction equation is solved by the flux-splitting method, and the radiative transfer equation is solved by the discrete ordinate method. The transient temperature response obtained from hyperbolic heat conduction equation is compared with those obtained from the classical parabolic heat conduction equation. The results show that the non-Fourier effect can be important when the conduction-to-radiation parameter and the thermal relaxation time of heat conduction are larger. Under this condition, for the laser-flash measurement of the thermal diffusivity in semitransparent materials, omitting the non-Fourier effect can result in significant errors.
Non-Fourier effect, Radiation-conduction coupled teat transfer,, Transient heat transfer, Semitransparent medium
-
37浏览
-
0点赞
-
0收藏
-
0分享
-
662下载
-
0评论
-
引用
谈和平, L.H. Liu*, H.P. Tan
Journal of Quantitative Spectroscopy & Radiative Transfer 71(2001)11-24,-0001,():
-1年11月30日
The non-Fourier effects on transient thermal response in semitransparent medium with black boundary surfaces caused by a periodic irradiation are studied. The processes of the transient coupled radiative-conductive heat transfer in a one-dimensional semitransparent slab with black boundaries are analyzed numerically. The hyperbolic heat conduction equation is solved by the flux-splitting method, and the radiative transfer equation is solved by the discrete ordinate method. The transient thermal responses obtained from hyperbolic heat conduction equation are compared with those obtained from the classical parabolic heat conduction equation. The results show that the non-Fourier effect can be important when the conduction-to-radiation parameter and the thermal relaxation time of heat conduction are larger. The non-Fourier effect can be important even at a long time after the initial transient if the periodic irradiation at boundary is oscillatory with the period of oscillation of the same order of magnitude as the thermal relaxation time of conduction.
-
45浏览
-
0点赞
-
0收藏
-
0分享
-
269下载
-
0评论
-
引用
谈和平, Lin-Hua Liu*, He-Ping Tan
Int. J. Therm. Sci. (2001) 40, 877-889,-0001,():
-1年11月30日
The transient thermal responses in a two-dimensional semitransparent cylinder with black boundary surfaces caused by a pulse irradiation at one end of the cylinder are studied. The processes of the transient coupled radiative-conductive heat transfer in the cylinder are analyzed numerically. An implicit central-difference scheme is employed for handling the energy equation, while a discrete-ordinates method is used to solve the radiative transfer equation. The effects of various parameters on the transient thermal responses are investigated. It is found that, due to the radiation within medium, the transient temperature of the nonirradiated end surface of the cylinder can be greater than that of the inner medium of cylinder. Temperature evolution curves with two peaks can be observed under some conditions at the nonirradiated end of the cylinder. The effects of the conduction-radiation parameter, the optical thickness and refractive index on the transient temperature responses are large. The effects of single-scattering albedo are more significant for the radiation-dominated case than that for the conduction-dominated case.
transient temperature response/, coupled radiation and conduction/, transient heat transfer/, semitransparent medium
-
58浏览
-
0点赞
-
0收藏
-
0分享
-
437下载
-
0评论
-
引用
【期刊论文】Internal distribution of radiation absorption in one-dimensional semitransparent medium
谈和平, L.H. Liu*, H.P. Tan, Q.Z. Yu
International Journal of Heat and Mass Transfer 45(2002)417-424,-0001,():
-1年11月30日
The internal distribution of spectral radiation absorption in one-dimensional semitransparent slab, sphere and cylinder irradiated uniformly and isotropically is determined by the ray tracing method, and the detailed theory for computation are deduced. The computed results show that the internal distribution of spectral radiation absorption in slab differs from that in spherical and cylindrical particles. The peak of internal volumetric spectral radiation absorption may locate at interior shell of the semitransparent sphere and cylinder. The dimensionless volumetric spectral radiation absorption is higher near the center for weakly absorbing or small size parameter, but is higher near the surface for strongly absorbing or large spheres and cylinders. Refraction focuses the rays close to the sphere and cylinder center. With the increases of the refractive index, the dimensionless volumetric spectral radiation absorption increases near the sphere and cylinder centers and decreases near the sphere and cylinder surfaces.
Semitransparent slab, Semitransparent Sphere, Semitransparent cylinder, Radiant absorption, Ray tracing method
-
49浏览
-
0点赞
-
0收藏
-
0分享
-
107下载
-
0评论
-
引用
【期刊论文】Internal distribution of radiation absorption in a semitransparent spherical particle
谈和平, L.H. Liua, *, H.P. Tana, T.W. Tongb
Journal of Quantitative Spectroscopy & Radiative Transfer 72(2002)747-756,-0001,():
-1年11月30日
The internal distribution of spectral radiation absorption in a semitransparent spherical particle irradiated uniformly and isotropically is determined by the ray tracing method, and the detailed computation formulae for the internal spectral radiation absorption are deduced. The computed results show that the peak of internal volumetric spectral radiation absorption may locate at the interior shell of the particle. The dimensionless volumetric spectral radiation absorption is higher near the center for weakly absorbing or small spheres, but the dimensionless volumetric spectral radiation absorption is higher near the surface for strongly absorbing or large spheres. The corresponding physical interpretations of the internal spectral absorption distribution are given.
Semitransparent medium, Spherical particle, Internal radiation absorption, Ray tracing method
-
41浏览
-
0点赞
-
0收藏
-
0分享
-
138下载
-
0评论
-
引用
谈和平, L.H. Liu*, H.P. Tan, B.X. Li
Journal of Quantitative Spectroscopy & Radiative Transfer 73(2002)641-648,-0001,():
-1年11月30日
An iteration method is extended to analyze the influences of the turbulent fluctuation on the reconstruction of Reynolds time-averaged temperature in turbulent axisymmetric free flames when the temperature profiles are retrieved by the low time-resolution data of outgoing emission and transmission radiation intensities. A simplified probability density function is used to simulate the turbulent fluctuation of temperature and absorption coefficient. The effects of turbulent fluctuating intensities on the estimation of the Reynolds time-averaged temperature and absorption coefficient are examined. The results show that the effects of turbulent fluctuation on the reconstruction of time-averaged absorption coefficient are not significant. In the case of weak turbulent fluctuation, the influences of turbulent fluctuation on the estimation of time-averaged temperature profiles are small. But in the case of strong turbulent fluctuation, the influences of turbulent fluctuation on the estimation of time-averaged temperature profiles are significant.
Inverse radiation problem, Temperature profile, Turbulent flow, Axisymmetric free flame
-
43浏览
-
0点赞
-
0收藏
-
0分享
-
76下载
-
0评论
-
引用
谈和平, L.H. Liu*, H.P. Tan
Journal of Quantitative Spectroscopy & Radiative Transfer 74(2002)115-123,-0001,():
-1年11月30日
The internal distribution of radiative absorption in one-dimensional semitransparent slab exposed to collimated irradiation is determined by the ray tracing method, and the detailed computation formulae for the distribution of radiative absorption are deduced. It is found that the ray will be polarized by specular reflection of slab boundaries even if the collimated irradiation is unpolarized, and the extent of polarization increases with the internal reflection times. The effects of polarization on the radiative absorption are analyzed and the radiative absorption distributions are compared with those obtained from the case in which the effects of polarization are omitted. The results show that the large differences between re6ectances of perpendicular and parallel polarized components are the main causes resulting in errors of radiative absorption distribution. The polarization of incident beam has significant influences on the radiative absorption. Even for an unpolarized beam irradiated near Brewster's angle, omitting the effects of polarization will result in large errors, and the errors increase with the refractive index.
Semitransparent medium, Collimated irradiation, Radiative heating, Polarization effect, Ray tracing method
-
34浏览
-
0点赞
-
0收藏
-
0分享
-
83下载
-
0评论
-
引用
谈和平, L.H. Liu*, H.P. Tan, Q.Z. Yu
International Journal of Heat and Mass Transfer 46(2003)2917-2920,-0001,():
-1年11月30日
A Monte Carlo curved ray-tracing method is used to analyze the radiative heat transfer in one-dimensional absorbing-emitting-scattering semitransparent slab with variable spatial refractive index. A problem of radiative equilibrium with linear variable spatial refractive index is taken as an example in this paper. The predicted temperature distributions are determined by the proposed method and compared with the data in references. The results show that influences of refractive index gradient are important and the influences increase with the refractive index gradient, the temperature distribution approaches to the one obtained for a constant refractive index when the slab optical thickness is far greater than 1.0, and the effect of the scattering phase function is similar to that in the medium with constant refractive index.
Semitransparent medium, Variable spatial refractive index, Monte Carlo method, Curved ray-tracing method
-
58浏览
-
0点赞
-
0收藏
-
0分享
-
94下载
-
0评论
-
引用
谈和平, L.H. Liu∗, H.P. Tan
Journal of Quantitative Spectroscopy & Radiative Transfer 83(2004)333-344,-0001,():
-1年11月30日
The transient temperature responses in a one-dimensional semitransparent slab with variable refractive index caused by a pulse irradiation are studied. The processes of the transient coupled radiative-conductive heat transfer in the semitransparent slab are analyzed numerically. An implicit central-difference scheme is employed for handling the energy equation, while a discrete curved ray-tracing method is used to solve the radiative transfer equation. The transient temperature responses in the case of constant refractive index are compared with those in the case of variable spatial refractive index. The results show that the spatial variation of refractive index has significant influences on the transient temperature responses of semitransparent slab. Omitting the spatial variation of refractive index may result in errors of transient temperature responses within semitransparent slab to some extent. The effects of optical thickness and refractive index gradient on the transient temperature responses are significant. Increasing the slab optical thickness, the effects of refractive index gradient on the transient temperature responses increase, especially for the non-incident surface.
Transient temperature response, Radiation-conduction coupled heat transfer, Transient heat transfer, Semitransparent medium, Variable refractive index medium
-
48浏览
-
0点赞
-
0收藏
-
0分享
-
100下载
-
0评论
-
引用
【期刊论文】Ray tracing method for transient coupled heat transfer in an anisotropic scattering layer
谈和平, He-Ping Tana, *, Hong-Liang Yia, Ping-Yang Wangb, Li-Ming Ruana, Timothy W. Tongc
International Journal of Heat and Mass Transfer 47(2004)4045-4059,-0001,():
-1年11月30日
A radiative transfer model for a linearly or nonlinearly anisotropic scattering medium is developed by the ray tracing method. Under specular reflection, the radiative transfer coefficients of absorbing and anisotropic scattering layer with opaque boundaries are deduced. Coupled radiative and conductive heat transfer is solved. The advantage of the method is that it only needs to disperse spatial position, but not solid angle. A comparison of the present results with the previous results shows that the radiative transfer coefficients of an anisotropic scattering slab are correct. The influence of optical thickness, surface emissivity, spectrum characteristics, albedo, and boundary conditions on the transient temperature and the heat flux distribution are analyzed. According to analyzed results of linear scattering and nonlinear scattering, it is found that the ratio of two-dimensionless heat fluxes with two different scattering phase functions is a monotone function of optical thickness. It can be used as a benchmark to verify the results.
Coupled radiative and conductive heat transfer, Opaque boundaries, Radiative transfer coefficients, Anisotropic scattering, Scattering phase functions
-
43浏览
-
0点赞
-
0收藏
-
0分享
-
85下载
-
0评论
-
引用