Generalized Boundary Conditions of Radiant-Convection Heat Exchange of Bodies with Ambient Medium through Multilayer Nonplanar Coatings
نویسندگان
چکیده
We propose an approach to the construction of generalized boundary conditions radiant-convective heat exchange bodies with ambient medium through nonplanar multilayer coatings. This is based on use exact heat-conduction equation in coating layers and expansion temperature function a power series respect coordinate directed along normal body–coating interface. obtain some computational versions valid different accuracies. also deduce formulas for reconstruction distributions across thickness terms values its derivative body.
منابع مشابه
Nanofluid forced convection through a microtube with constant heat flux and slip boundary
Given the need to increase the efficiency of heat transfer in thermal systems, especially systems using nanofluids in microscale and nanoscale heat transfer equipment ideas to improve their performance is very good.In present study, the flow and heat transfer of Water-Cu nanofluid in micro-tube with slip regime with constant wall heat flux numerically simulated with low Reynolds numbers. Sl...
متن کاملA GBC-based Approach to Solving Heat Conduction Problems: a Case of Bodies with Thin Multilayer Coatings
Usually, the calculation for bodies with laminated coatings is connected with formulating and solving appropriate problems of mathematical physics for multilayer systems, which are cumbersome and ineffective for practical purposes and are typically used as standards in elaborating approximate methods. This paper suggests an approach essentially simplifying solving the problems of the determinat...
متن کاملConvection in a Tilted Square Enclosure with Various Boundary Conditions and Having Heat Generating Solid Body at its Center
In this study free convection flow and heat transfer of a fluid inside a tilted square enclosure having heat conducting and generating solid body positioned in the center of the enclosure with various thermal boundary conditions has been investigated numerically. The governing equations are transformed into non-dimensional form and the resulting partial differential equations are solved by Fini...
متن کاملOn the Principle of Exchange of Stabilities in Rayleigh-Bénard Convection, II - No-slip Boundary Conditions
Rayleigh-Bénard convection with internal heat sources and a variable gravity field is treated with no-slip boundary conditions. It is proved that the principle of exchange of stabilities holds at all Prandtl numbers, as long as the gravity field and the integral of the heat sources both have the same sign. The proof is based on the idea of a positive operator, and uses the positivity properties...
متن کاملThree-Dimensional Boundary Layer Flow and Heat Transfer of a Dusty Fluid Towards a Stretching Sheet with Convective Boundary Conditions
The steady three-dimensional boundary layer flow and heat transfer of a dusty fluid towards a stretching sheet with convective boundary conditions is investigated by using similarity solution approach. The free stream along z-direction impinges on the stretching sheet to produce a flow with different velocity components. The governing equations are reduced into ordinary differential equations b...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Mathematical Sciences
سال: 2022
ISSN: ['1072-3374', '1573-8795']
DOI: https://doi.org/10.1007/s10958-022-05741-y