抄録
To investigate the thermal environment in railway tunnels, temperature predictions by simulation are necessary. The authors made an acrylic model tunnel, sent the heated air inside of the model tunnel and measured the temperatures of the outer surface of the model tunnel and the air in the model tunnel. As a result, we found that it is possible to assume the outer surface temperatures to be isothermic. And, the analytical predictions of the steady state air temperature in the model tunnel showed good agreement with the measured values.