Re is a non-dimensional number to show the onset of turbulence. pVD Re = Re s 2000 2000 S Re s 3000 Re 2 3000 laminar flow transition flow (unpredictable) turbulent flow VD D- diameter of the conduit (or, characteristic length). v - kinematic viscosity, p- absolute viscosity. The above definition of Reynolds number is given for pipe flow. If it is for airflow (temp = 20°C, v = 1.5x10-5 m?/s) with a velocity of 0.1 m/s over a thin plate of semi-infinite extent, the transition region length over the thin plate will be O Transition region length = 450 m O None of the answers are correct. O Transition region length = 435 m O Transition region length = 15 m ↑ 11

Re is a non-dimensional number to show the onset of turbulence. pVD Re = Re s 2000 2000 S Re s 3000 Re 2 3000 laminar flow transition flow (unpredictable) turbulent flow VD D- diameter of the conduit (or, characteristic length). v - kinematic viscosity, p- absolute viscosity. The above definition of Reynolds number is given for pipe flow. If it is for airflow (temp = 20°C, v = 1.5x10-5 m?/s) with a velocity of 0.1 m/s over a thin plate of semi-infinite extent, the transition region length over the thin plate will be O Transition region length = 450 m O None of the answers are correct. O Transition region length = 435 m O Transition region length = 15 m ↑ 11

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Question 7 Which of the following is true about Friction Factor? Choose all that apply. Friction factor tends to be higher for turbulent flows. Friction factor old steel pipe > Friction factor new steel pipe (given the same diameter and fluid). Friction factor is used to determine minor losses. Friction factor for laminar flows is (64 / Re).
A fluid of specific gravity 0.8 is flowing in a pipe. The pressure drop across a flow secti between 1 and 2 is measured by a differential manometer as shown in the figure below The manometric fluid is mercury (S = 13.6). The pressure drop is Fluid (5-0.8) 2 m 0.5 m He Assume density of water is 1000 kg/m³ and g = 9.81 m/s².
Question 4 Quèstion 4 1 points Application of orificemeter is O 1. Measure pressure difference O 2. Measure mass flow rate O 3. Measure pressure difference O 4. Measure volume flow rate
The head loss due to flow of a fluid inside a pipe is calculated from .L V? D 2g h Loss where Loss f = friction factor L = pipe length (m) D = pipe diameter (m) V = average flow velocity (m/s) g = acceleration due to gravity (m/s²) What is the appropriate unit for friction factor f?
I need the answer as soon as possible
Fluid Mechanics / Static Fluid Choose the correct answer Dynamic Viscosity of air ? d. Decrease with temperature f. Both b and d a. 1000*lower than the Dynamic Viscosity of water c. Increase with temperature e. Both c and d b. 1000*higher than the Dynamic Viscosity of water
I need the answer as soon as possible
E.fluids.
A centrifugal pump is used to pump a liquid in steady turbulent flow through a smooth pipe from one tank to another. Develop an expression for the system total head Δh in terms of the static heads on the discharge and suction sides zd and zs respectively, the gas pressures above the tanks on the discharge and suction sides pd and Ps respectively, the liquid density ρ, the liquid dynamic viscosity μ, the gravitational acceleration g, the total equivalent lengths on the discharge and suction sides (∑Le)d and (∑Le)srespectively, and the volumetric flow rate Q.
Solve it