Author deals with simplified method of estimation which refers numerically to experiments carried out in model and actual tunnels; estimation requires steady condition of train running with constant speed sufficiently inside of tunnel, transient phenomena being ignored; method is based on momentum theorem applied to flow around train. (see also Int Ry Congress Assn -- Monthly Bul v 42 n 3 Mar 1965 p 173-5)
Comment on aerodynamic drag of train in tunnel
Tokyo. Ry Tech Research Inst -- Quarterly Report
1964
2 pages
Report
Englisch
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Estimation of aerodynamic drag of train in long tunnel
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