ABSTRACT:This paper presents a review of the techniques used to reduce aerodynamic drag over bluff bodies such as cylinders. spheres. 2D bodies with blunt backs and their application to commercial road vehicles. The recent research carried out on the drag reduction is presented and categorised. https://safeersappliancers.shop/product-category/rangemaster-esp110dffbl-dual-fuel-range-cooker-with-6-hobs-110cm-lpg-convertible/