TY - JFULL AU - Yin Yin Pey and Leok Poh Chua and Wei Long Siauw PY - 2012/12/ TI - Stochastic Estimation of Cavity Flowfield T2 - International Journal of Aerospace and Mechanical Engineering SP - 2414 EP - 2420 VL - 6 SN - 1307-6892 UR - https://publications.waset.org/pdf/11681 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 71, 2012 N2 - Linear stochastic estimation and quadratic stochastic estimation techniques were applied to estimate the entire velocity flow-field of an open cavity with a length to depth ratio of 2. The estimations were done through the use of instantaneous velocity magnitude as estimators. These measurements were obtained by Particle Image Velocimetry. The predicted flow was compared against the original flow-field in terms of the Reynolds stresses and turbulent kinetic energy. Quadratic stochastic estimation proved to be more superior than linear stochastic estimation in resolving the shear layer flow. When the velocity fluctuations were scaled up in the quadratic estimate, both the time-averaged quantities and the instantaneous cavity flow can be predicted to a rather accurate extent. ER -