Numerical simulation study of exhaust system

Abstract

The numerical simulation study of the exhaust air system mainly simulates the temperature field and velocity field of the airflow under the three working conditions of summer, transition season and winter for the exhaust flat tunnel and exhaust shaft, and establishes the equal scale numerical model through CFD calculation software to simulate the airflow organization and flow conditions of the exhaust system under different working conditions in the actual operation process. The CFD simulation method can be seen as basically simulating the flow of a fluid under the control of the flow equations(mass equation, momentum equation, energy equation). Through simulation, the distribution of basic physical quantities(such as velocity, temperature, humidity, etc.) at each location in the flow field of complex problems can be obtained over time. The numerical simulation study of the exhaust system mainly verifies the feasibility of the ventilation scheme of the exhaust system under the condition of designing the air supply and exhaust parameters and the layout of the air outlet, and provides reference opinions for the design to further optimize and improve the exhaust system scheme and equipment selection.

Keywords

exhaust system / temperature distribution / velocity distribution / numerical simulation / CFD