The results show that the presence of the porous particles enhances the heat transfer from the cylinder; however, the significant heat transfer augmentation is produced at high Re due to the effect of thermal dispersion. In addition, the effect of Re on Nu_t is much greater than that of lc...
aResults of the equilibrium calculation at each time step, cylinder heat transfer, and work done by the gases are calculated and used in the energy balance. The heat release rate typically lags the burn rate. 平衡演算的结果在,每次步、圆筒气体完成的热传递和工作被计算并且用于能量平衡。 放热率...
For a particular casting process the constant K in Chvorinov’s equation in Exercise 2 is 3.0 s/mm2 for a cylinder 150 mm high and 100 mm in diameter. Determine the solidification time for this casting. 4. Tool wear is a major consideration in machining operations. The following relation ...
The reciprocity principle governs the symmetry in transmission of electromagnetic and acoustic waves, as well as the diffusion of heat between two points in space, with important consequences for thermal management and energy harvesting. There has been significant recent interest in materials with time-...
••••••••••••••••••• 88 4.4.2 Flow Skew to the Mesh •••••••••••••••• 97 4.4.3 Pure Convection with Constant 4.5 Concl usion V.o.r.t.ic.i.ty...•.•.•.•.•.•...•......
The mathematical analysis showed that the efflux time for cone shape vessel is less than that of cylinder through single exit pipe and the Froude number for cone was higher than that of a cylinder [7]. Reddy and Subbarao showed that efflux time for spherical tank is less than that of ...
period of heating from the time of fuel ignition until the time the cylinder reaches its maximum temperature is divided into two time intervals. For the first interval, a model based on a constant eat flu to the cylinder surface is used. F OR T E S COND A MODEL BASED ON A VARIABLE ...
Discrete avalanching is the dominant motion of granular beds in industrial rotary kilns. The avalanche time is an important parameter influencing the heat- and material transfer inside the kiln. Experiments are conducted on a rotating cylinder to measure the time evolution of avalanches. Nonspherical ...
The rotational motion of fractional Maxwell fluids in an infinite circular cylinder that applies a time-dependent but not oscillating couple stress to the fluid is investigated using the integral transform technique. Such a flow model was not analyzed in
Stationary analysis just solves the first thin conductive shell with the dependent variable vel. Time dependent study consists of solving the second thin conductive shell (Tf) and heat transfer (T). In order to model the borehole heat exchanger, I need to input a constant heat rate (let's ...