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A study has been carried out on the influence of a paraxial porous insert on physical processes arising during the combustion of a swirling flow of a mixture of methane and air. With decrease of the porosity the role of conductive heat exchange in the porous layer grows. As a result, heat release in the peripheral combustion zone is transferred to the porous insert, causing ignition of the gas in...
The influence of a porous ring insert on the structure of a swirling flow in a channel is investigated. In a strongly swirling flow the main part of the flow from the porous layer is expelled into the near-wall region and only a small part is expelled into the axial region. The maximum of the tangential velocity in the axial zone decreases with growth of the porosity. In the near-wall region the influence...
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