Open circuit LSWT

  • Open circuit LSWTs are generally used for education purposes. They have lower prices then closed circuit versions.
  • On other hand the required power is higher then closed circuit tunnel for the same velocity and TS dimensions.
  • Test sections are of the blower type can be open or closed.
  • Turbulence level is typically below 0,25%.
  • A basic computerized LSWT´s control system is a standard part of delivery.
  • Fan-drive system is based on a fan powered by AC motor and controlled by a frequency changer.
  • Standard Product Line of WTtech.CZ´s LSWTs is listed below. Custom made LSWTs under customer´s specific requirements are also provided (e.g. test section dimensions, airflow velocity, airflow quality, tunnel circuit optimization from total facility dimension point of view).

Standard Product Line

Model Test section dimensions [mm] Airflow velocity in the TS [m/s]
LSWT-OC039-35A 300 x 300 x 600 35
LSWT-OC039-50A 300 x 300 x 600 50
LSWT-OC051-35A 450 x 450 x 900 35
LSWT-OC051-50A 450 x 450 x 900 50
LSWT-OC068-35A 600 x 600 x 1200 35
LSWT-OC068-50A 600 x 600 x 1200 50


Typical accessories for LSWTs :

  • Model positioning systems including turntables
  • Aerodynamic balances & Calibration Rigs
  • Probes and traverse systems
  • DAQ, measurement and data postprocessing programs
  • Wind Tunnel models