...-order heat equations in unsteady state condition. A new iterative Broyden Legendre Wavelet Galerkin Finite Element Method (BLWGFEM) is used for the solution. The central difference approximation used for discretization of second order derivatives and then utilization of Hadamard, Khatri Rao and Face...

.... Editor: Ali Ebadian. 28 03 2013 14 10 2013 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...

...Ali Shokrgozar Abbassi; Asghar B. Rahimi First, the energy equation of the liquid-solid interface, Eq. (17) , is numerically solved to find the freezing velocity ( d   S ˜ / d τ = S · ˜ ( t ) ) , which is as unsteady term in Eq. (8) . Thus, this equation...

...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...

... streamline curvature so the use of standard k-ε model can be a good choice. Settings of the numerical simulations Solver 3D double precision Numerical Scheme: segregated Linearization: implicit Discretization Scheme: Second order upwind Time: Unsteady Space: 3D...

...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...

... transforms heat exchangers laminar to turbulent transitions time series Forced Convection Heat Transfer Heat Exchangers Tubes Unsteady Vortex T = T w Figure 3 shows a schematic representation of the three-dimensional grid used for the present computation...

... 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...

...: H. S. Lee. 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 investigation of the temporal...

...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...

... in vertical rectangular enclosures. Density Inversion Enclosure Flows Heat Transfer Natural Convection Unsteady water natural convection confined flow pipe flow fluid oscillations flow simulation flow visualisation 09 December 1999 20 July 2000 Contributed...

... for A / D = 0.314 . They attributed the rise at A / D = 0.314 past St ≈ 0.3 to the “turbulence” effect. They did not precisely define what the “turbulence” effect was, although it is inferred from their paper that it is associated with some unsteady (incoherent) motion...

... π 1 / 2 where Λ is the auxiliary Fresnel function (see Appendix). Observe that the term proportional to the auxiliary Fresnel function Λ in Eq. ( 20 ) governs the initial unsteady regime. When time is long enough the contribution of the auxiliary Fresnel function becomes negligible...

... = initial condition Sucec , J. , 1975 , “ Unsteady Heat Transfer Between a Fluid With Time Varying Temperature and a Plate: An Exact Solution ,” Int. J. Heat Mass Transf...