...H. R. Mozayyeni; Asghar B. Rahimi The general formulation and exact solution of the Navier–Stokes and energy equations regarding the problem of steady and unsteady two-dimensional stagnation-point flow and heat transfer is investigated in the vicinity of a flat plate. The plate is moving...

... assumed to be one-dimensional. In this study the solidification of stagnation flows is modeled as an accelerated flat plate moving toward an impinging fluid. The unsteady momentum equations, taking the pressure variations along viscous layer thickness into account, are reduced to ordinary differential...

...Yongmann M. Chung; Paul G. Tucker Numerical studies of unsteady heat transfer in grooved channel flows are made. The flows are of special relevance to electronic systems. Predictions suggest a commonly used periodic flow assumption (for modeling rows of similar electronic components) may...

... Transient Unsteady Heat exchangers are generally designed to meet certain performance requirements under steady operating conditions. However, transient response of heat exchangers needs to be known for designing the control strategy of different HVAC systems, cryogenic and chemical process plants...

... Scheme: segregated Linearization: implicit Discretization Scheme: Second order upwind Time: Unsteady Space: 3D Turbulence Model Standard κ-ε Wall treatment: Standard wall functions Radiation model Discrete Ordinates (DO) The numerical simulations...

...A. Trombe; A. Suleiman; Y. Le Maoult The purpose of this study is to evaluate the efficiency of an inverse method to determine the variation of convective heat transfer coefficients in the unsteady state inside building enclosures. The experimental system is mainly composed of a vertical, heated...

...Stanley J. Kleis; Ivan Rivera-Solorio The problem of unsteady mass transfer from a sphere that impulsively moves from rest to a finite velocity in a non-uniform concentration distribution is studied. A range of low Reynolds numbers (Re<1) and moderate Peclet numbers (Pe ranges from 5.6 to 300...

... Unsteady Vortex 16 Comparison of transverse variation of heat transfer coefficient in the wake region The grid independence was confirmed rigorously. The variation of the span-averaged Nusselt number for two grid sizes, 79 × 57 × 27 and 69 × 49 × 23...

... stagnation flow flow instability forced convection Analytical Boundary Layer Conjugate Flow Forced Convection Heat Transfer High Temperature Impingement Inverse Jets Laminar Thermal Turbulence Unsteady Impinging jets are often used where high rates of heat transfer...

...Ruixian Cai, Academician; Na Zhang, Associate Professor Some algebraic explicit analytical solutions of the unsteady one-dimensional variable coefficient partial differential equation set describing drying process of an infinite plate are derived and given. Such explicit solutions have not yet been...

... Editor: M. Faghri. 22 October 2001 12 August 2002 03 12 2002 heat transfer flow simulation Augmentation Enhancement Heat Transfer Instability Unsteady Miniaturization of electronic components has increased circuit junction density and the associated heat loads...

...Yongmann M. Chung; Kai H. Luo Unsteady heat transfer caused by a confined impinging jet is studied using direct numerical simulation (DNS). The time-dependent compressible Navier-Stokes equations are solved using high-order numerical schemes together with high-fidelity numerical boundary conditions...

..., defining a boundary between puff and interrupted-jet behavior. 02 02 2001 03 08 2001 10 05 2002 flow instability jets heat transfer stratified flow flow visualisation turbulence Jets Scaling Turbulence Unsteady Vortex A theoretical and experimental...

...Ruixian Cai; Na Zhang, Associate Professor The analytical solutions of nonlinear unsteady heat conduction equation are meaningful in theory. In addition, they are very useful to the computational heat conduction to check the numerical solutions and to develop numerical schemes, grid generation...

... the 107.49 deg turn of the blade cascade. The mainstream Reynolds number based on cascade exit velocity was 5.3 × 10 5 . Upstream unsteady wakes were simulated using a spoke-wheel type wake generator. The wake Strouhal number was kept at 0 or 0.1. The central blade had a variable tip gap clearance...

... Heat Transfer Natural Convection Unsteady The present study deals with the natural convection of water near its density maximum (cold water) in a vertical rectangular enclosure of high height/width aspect ratio as depicted in Fig. 1 . Cold water is characterized by an anomalous density...

... oscillations velocity measurement temperature measurement Convection Cooling Cylinder Enhancement Entrainment Experimental Fluids Forced Convection Heat Transfer Heat Exchangers Image Processing Nonintrusive Diagnostics Recirculating Separated Surface Temperature Thermal Unsteady...

... diffusion Conduction Heating Heat Transfer Transient Unsteady Transient, particularly periodic, diffusion problems are very common in practicing engineering. Some examples are the cyclic heating of the cylinder surface of internal combustion engines, the diurnal heating and nocturnal...

...) w = pipe wall 0 = initial condition Sucec , J. , 1975 , “ Unsteady Heat Transfer Between a Fluid With Time Varying Temperature and a Plate: An Exact Solution...

... characteristics of such systems. There is also very little experimental data. Filling these knowledge gaps is the focus of this research. Condensation Heat Transfer Heat Exchangers Two-Phase Unsteady two-phase flow condensation heat transfer heat exchangers...