EXPERIMENTAL AND NUMERICAL STUDY ON THE PERFORMANCE CHANGE OF A SIMPLE PROPELLER SHAPE USING THE COANDA EFFECT

Experimental and Numerical Study on the Performance Change of a Simple Propeller Shape Using the Coanda Effect

In this study, a jet injection propeller was designed to increase its efficiency, and the results were compared by open water tests and numerical computations.Also, the change in shape of the slit and injection volume conditions, which are difficult to perform experiments with, were analyzed through computations.The jet injected from the blade surf

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Incidence Rates of Root Rot in Sweetpotato Caused by Cultivation Soil and Soil Microorganisms During Storage Periods

Sweetpotatoes require a storage period for year-round use and improved sweetness by starch degradation.However, long-term storage can cause root rot, and a large amount of sweetpotatoes can be discarded.Root rot is typically caused by pathogenic soil-borne Fusarium spp., and the development of root rot induced by the characteristics of cultivating

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Rapid and reliable re-design of miniaturized microwave passives by means of concurrent parameter scaling and intermittent local tuning

Abstract Re-design of microwave passive components for the assumed operating frequencies or substrate parameters is an important yet a tedious process.It requires simultaneous tuning of relevant circuit variables, often over broad ranges thereof, to ensure satisfactory performance of the system.If the operating conditions at the available design ar

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