Title
Aerodynamic Drag Reduction of Bluff Bodies: Application of Natural Ventilation,Used
Delivery time: 8-12 business days (International)
Aerodynamics of bluff bodies has gained the attention of aerodynamicists all over the world in recent times, primarily because of importance given to drag reduction by the automobile industry. Since pressure drag accounts for bulk of the drag of bluff bodies, any technique to manipulate and control the overall pressure field around such bodies to achieve base pressure rise causes reduction of drag. Interestingly, not many works are found on 3 dimensional bluff bodies such as spheres. Currently, interest in spherical airships is growing, triggered by the tourism industry. However, the high drag and management of highly unsteady wake of spheres are some of the aerodynamic issues that need to be addressed. This book offers the concept of passive natural ventilation as a potential solution. Natural ventilation occurs when the stagnation zone and the base are interconnected through an internal duct, which causes a jet flow through the center. Based on several years of experimental research, it is shown that natural ventilation of a sphere leads to substantial drag reduction and reduced wake unsteadiness at high Reynolds numbers.
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Shipping & Returns
Shipping
We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
We accept payments with :
Visa, MasterCard, American Express, Paypal, Shopify Payments, Shop Pay and more.