The present study attempts to improve heat transfer efficiency of a domestic gas burner by enhancing heat transfer from flue gases. Heat transfer can be augmented using the obstacles that are inserted into the flow field near the heated wall of the domestic gas burner. First, to achive the maximum efficiency, the insert geometry is optimized by the multi-objective genetic algorithm so that heat...

Adaptive and flexible control techniques have recently been examined as methods of controlling flow reducing the potential noise in vertical axis wind turbines. Two-Dimensional (2D) fluid simulation around rod-airfoil is addressed this study a simple component turbine by using Unsteady Reynolds Averaged Navier–Stokes (URANS) equations for prediction Ffowcs Williams-Hawkings (FW-H) analogy. To r...

Holyoak and Thagard proposed that the retrieval and mapping tasks of analogy can be viewed as constraint satisfaction problems, and described a connectionist implementation of their proposal. In this paper, we describe another constraint satisfaction method for the two tasks in the context of visual analogy: in our method, the source cases are organized in a discrimination tree, and all the sou...

theoremsnametheoremlenabs ag+ ag ag& ag"lemmasass ]x ] (y ] z) = (x ] y) ] z150.71 0.65 0.65 0.78com ]x ] y = y ] x230.92 0.79 0.3{lemc ]com2 ] x ] (y ] z) = y ] (x ] z)150.71 0.65{{lemc ]lemc ] ? ] (y ] x) = y ] ( ? ] x)130.76 0.48 0.40{even ]e(x) e(x ] y)290.82 1.00{{dbl...

We survey the state of the art in the use of analogy in automated reasoning. We are particularly interested in the work of Melis and Whittle (1998). A detailed analysis of their analogy mechanism is given. The problem domain that they tackled is inductive theorems. We examine whether their technique can be used in other problems domains, e.g. in the domain of limit theorems and group theory.

The aim of this work is to analyze the heat transfer, hydraulic resistance and thermo-hydraulic performance a new type exchange channels made by additive technology. main factors affecting quality products determining transfer are noted. Well-known ratios for calculating not suitable such high roughness. Data on AT coefficient show that even at low Reynolds numbers there contribution With incre...

A linear stability analysis was carried out for axial flow between a rotating porous inner cylinder and a concentric, stationary, porous outer cylinder when radial flow is present for several radius ratios. The radial Reynolds number, based on the radial velocity at the inner cylinder and the inner radius, was varied from 215 to 15, and the axial Reynolds number based on the mean axial velocity...