Hydroxyl tagging velocimetry (HTV) is generally used for velocity measurement especially in the high-temperature and high-velocity flow field. In this work. according to the monotonous change of OH fluorescence intensity with temperature. the relative temperature distribution could be observed from the intensity distribution along the hydroxyl fluorescence line. https://ashleyshomestores.shop/product-category/outdoor-sling-swivel-chair-set-of-2/