2.1. From the given data: D1 = 0.1 m, D2 = 0.15 m, V1 = 2 m/s. Using these data, the following preliminary calculations are useful: A1 = π 4 D2 1 = π 4 (0.1)2 = 0.007854 m2 , A2 = π 4 D2 2 = π 4 (0.15)2 = 0.01767 m2 Volumetric flow rate, Q, is given by Q = A1V1 = (0.007854)(2) = 0.0157 m3/s According to the continuity equation, A1V1 = A2V2 = Q → V2 = Q A2 = 0.0157 0.01767 = 0.889 m/s At 20◦C, the density of water, ρ, is 998 kg/m3 , and the mass flow rate, ˙m, is given by m˙ = ρQ = (998)(0.0157) = 15.7 kg/s 2.2. From the given data: D1 = 0.2 m, D2 = 0.3 m, and V1 = 0.75 m/s. Using these data, the following preliminary calculations are useful: A1 = π 4 D2 1 = π 4 (0.2)2 = 0.03142 m2 , A2 = π 4 D2 2 = π 4 (0.3)2 = 0.07069 m2 (a) According to the continuity equation, A1V1 = A2V2 → V2 = A1V1 A2 = (0.03142)(0.75) 0.07069 = 0.333 m/s (b) The volume flow rate, Q, is given by Q = A1V1 = (0.03142)(0.75) = 0.02357 m3/s = 23.6 L/s

No comments found.

jordancarter 7 months ago

This study guide is clear, well-organized, and covers all the essential topics. The explanations are concise, making complex concepts easier to understand. It could benefit from more practice questions, but overall, it's a great resource for efficient studying. Highly recommend!

A. You will receive a PDF that is available for instant download upon purchase. The document will be accessible to you at any time, from anywhere, and will remain available indefinitely through your profile.

A. Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

A. you are buying this document from us learnexams

A. No, you only buy these notes for $ indicated . You are not obligated to anything after your purchase.

A. check our reviews at trustpilot

Add To Cart

Buy Now