Numerical Simulation Research Of Ground Surface Effect On Natural Ventilation In Single-floor Workshop Building

Civilization course of human accelerates with high-speed development of up-to-date technology and social production. In the course, human being is confronted with the challenge from environment and energy. In continuable developing architecture view, virtue of natural ventilation is attached importance to technical ventilation. In recent academe, it is the hotspot that how to dig deeply the potential of natural ventilation. In this paper, on the basis of heat pressing and ground effect, mining the potential is for the sake of saving energy and reduced consuming power in the precondition of satisfying with natural ventilation effect.The paper researches the effects of natural ventilation impacted by ground effect or ignored it in lofty workshop based on basic theory of natural ventilation and application of numerical simulation. In probing into ground effect influence on natural ventilation, physics model is established and reasonable mathematic model is chosen. In steady state, ground effects are simulated in boundary conditions of different flow velocity in outdoor in virtue of k -εturbulent model, and educed the distributions of temperature, pressure and velocity.There discovers the maximum of velocity as 1.5m/s evaluating boundary condition of outdoor with analysis the results of numerical simulation. And in the 1.5m/s condition, it is analyzed that the influence on ground effect through set down the height of inlet windows. Because of anastomosis between site survey and results from numerical model and calculation, the method of simulation is a way to research, computation and design of natural ventilation. The paper opens out dynamic mechanism of ground effect influence on natural ventilation, and substantiates the theory of natural ventilation.