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Frequently asked questions and answers of Viscosity in Engineering Chemistry of Chemistry to enhance your skills, knowledge on the selected topic. We have compiled the best Viscosity Interview question and answer, trivia quiz, mcq questions, viva question, quizzes to prepare. Download Viscosity FAQs in PDF form online for academic course, jobs preparations and for certification exams . Intervew Quizz is an online portal with frequently asked interview, viva and trivia questions and answers on various subjects, topics of kids, school, engineering students, medical aspirants, business management academics and software professionals. Interview Question and Answer of Viscosity Question-1. What is viscosity in fluid mechanics? Answer-1: Viscosity is a measure of a fluid's resistance to flow. Viscosity is a fluid property in which an internal frictional force acts while the fluid is in motion and resist the relative motion. Question-2. How is viscosity typically measured? Answer-2: Viscosity is measured using a viscometer or viscosimeter. Question-3. Define the coefficient of viscosity? Answer-3: It is the tangential force necessary to keep a unit velocity gradient amid two layers each of unit area. Question-4. What are the SI units of viscosity? Answer-4: The SI units of viscosity are Pascal-seconds (Pa·s) or N·s/m2. Question-5. Explain the concept of dynamic viscosity? Answer-5: Dynamic viscosity measures a fluid's internal resistance to shear forces when it flows. It is represented by the symbol η (eta). Question-6. Define fluid? Answer-6: Fluid is a substance which begins to flow when external force is applied on it. Question-7. Give example for fluids? Answer-7: Liquids and gases. Question-8. What is kinematic viscosity, and how is it calculated? Answer-8: Kinematic viscosity is the ratio of dynamic viscosity (η) to the density (ρ) of a fluid. It is calculated using the formula: ? = η / ρ. Question-9. Why is it important to measure viscosity in various applications? Answer-9: Viscosity measurements are crucial for quality control, process optimization, and understanding fluid behavior in industries like manufacturing, pharmaceuticals, and food processing. Question-10. Name a common instrument used to measure viscosity in a laboratory? Answer-10: A common instrument is the Ostwald viscometer. Question-11. What is Stoke's formula? Answer-11: F=6πrηv , Where r = radius, η = fluid velocity, v = sphere velocity Question-12. What is meant by Reynold's number? Answer-12: Rn=(ρVL)/μ , Where ρ = density, V = flow speed, L = linear dimension, μ = dynamic velocity Question-13. Give the Newton's equation for viscous force? Answer-13: F= -ηA(dvx/dz) Question-14. What is the principle behind the capillary tube viscometer? Answer-14: The capillary tube viscometer measures viscosity by recording the time it takes for a liquid to flow through a narrow tube under gravity. Question-15. Define shear rate? Answer-15: Shear rate is the rate at which adjacent layers

The following are approximate capacities. The actual refill capacities may be slightly different. When refilling, follow the proceduredescribed in the “Maintenance and do-it-yourself” section to determine the proper refill capacity. Capacity (Approximate) Recommended Fluids and Lubrica US measure Imp measure Liter Fuel 14-1/2 Gal 12-1/8 Gal 55 L Unleaded gasoline with an octane rating of at least 87 AKI (RON 91) For additional information, refer to “Fuel recommendation. Engine oil Drain and refill QR25DE With oil filter change 4-7/8 qt 4 qt 4.6 L Genuine NISSAN engine oil or equivelant Engine oil with API Certification Mark Viscosity SAE 0W-20 For additional information, refer to “Engine oil and oil filter recommendations” in this section. As an alternative to this recommended oil, SAE 5W-30 conventional petroleum based oil may be used and meet all specifications and requirements necessary to maintain the New Vehicle Limited Warranty. Without oil filter change 4-1/2 qt 3-3/4 qt 4.3 L Cooling system With reservoir 2-1/8 gal 1-3/4 gal 8.1 L Pre-diluted Genuine NISSAN Long Life Antifreeze/Coolant (blue) or equivalent Continuously Variable Transmission (CVT) fluid — — — Refill to the proper level according to the instructions in the “Do-it-yourself” section. Genuine NISSAN CVT Fluid NS-3 Use only Genuine NISSAN CVT Fluid NS-3. Using transmission fluid other than Genuine NISSAN CVT Fluid NS-3 will damage the CVT, which is not covered by the NISSAN new vehicle limited warranty. Differential gear oil — — — Genuine NISSAN Differential Oil Hypoid Super GL-5 80W-90 or API GL-5 , viscosity SAE 80W-90 For hot climates, viscosity SAE 90 is suitable for ambient temperatures above 32 F (0°C) Transfer oil — — — Genuine NISSAN Differential Oil Hypoid Super GL-5 80W-90 or API GL-5, viscosity SAE 80W-90 Brake fluid — — — Refill to the proper level according to the instructions in the “Do-it-yourself” section. Genuine NISSAN Super Heavy Duty Brake Fluid (Available in mainland USA through your authorized NISSAN dealer) or equivalent DOT 3 Multi-purpose grease — — — NLGI No. 2 (Lithium Soap base) See your NISSAN dealer for service. Air conditioning system refrigerant — — — HFC-134a (R-134a) For additional information, refer to “Air conditioner system refrigerant and oil recommendations.” See your NISSAN dealer for service. Air conditioning system oil — — — NISSAN A/C System Oil Type ND-OIL8 or equivalent For additional information, refer to “Air conditioner system refrigerant and oil recommendations.” See your NISSAN dealer for service.

Viscosity calculator free download - Absolute and Kinematic Viscosity Calculator, Viscosity, Viscosity, and many more programs.See Full List On Sparklabs.comDownload Viscosity 1.9 For FreeDownload Viscosity WindowsDownload the latest version of Viscosity for Windows. A first-class OpenVPN client. Free; Category FTP.Viscosity is an OpenVPN client you can use to establish secure connections over the Internet using SSL VPN without having to carry out any especially complex operations. The program lets you create and manage as many connections as you want, even allowing you to import your connection from another server if you want to.Viscosity for macOSVersion 1.9.2 | Release Notes Requires macOS 10.13 or later.Viscosity for WindowsVersion 1.9.1 | Release Notes Requires Windows 7 or later.Installing Viscosity (Mac)1. Quit any old copies of Viscosity that are running. 2. Open the Viscosity.dmg file in your Downloads folder. 3. Drag the Viscosity icon to your Applications folder. 4. Eject the Viscosity disk image from the Finder. 5. Launch Viscosity from your Applications folder. Detailed InstructionsInstalling Viscosity (Windows)1. Exit any old copies of Viscosity that are running. 2. Open the Viscosity Installer.exe file in your Downloads folder. 3. Click Yes to the User Access Control prompt. 4. Follow the instructions displayed in the Setup Wizard. 5. Launch Viscosity from your Start menu. Detailed Instructions30-Day TrialThis download is a fully functional version of Viscosity, which will stop working after 30 days. To continue using Viscosity after this period you will need to purchase a license.After buying Viscosity you will receive a license code that will

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Definition and conversion dynamic to kinematic viscosity Follow us on Twitter Question, remark ? Contact us at [email protected] 1. Dynamic viscosity 2. Kinematic viscosity The viscosity is one of the fundamental properties of fluid used in almost every physical calculations, for example pressure drop calculation. This page is giving the definitions of 2 viscosity, dynamic and kinematic, and how to convert from one viscosity to another. 1. Dynamic viscosity The dynamic viscosity, often represented by the greek letter μ is a measure of the molecular interactions in the fluid. It is expressed in : Pa.s mPa.s cP (centipoise) It is possible to convert from unit to another thanks to : 1 cP = 1 mPa.s = 0.001 Pa.s 2. Kinematic viscosity The kinematic viscosity, often represented by the greek letter ν and used mainly for liquids, is a measure of the viscosity in the particular situation where the fluid is flowing down because of its own weight. Such a flow is actually dependent on the dynamic viscosity of the fluid but also its weight, represented by the density. The conversion from dynamic viscosity to kinematic viscosity can thus be done thanks to the following formula : ν = μ / ρ With : ν = kinematic viscosity (m2/s) μ = dynamic viscosity (Pa.s = kg/m.s) ρ = fluid density (kg/m3) The kinematic viscosity is measured in St (Stokes) cSt m2/s mm2/s The relation in between each unit is : 1 St = 10-4 m2/s 1 cSt = 0.01 St 1 cSt = 1 mm2/s AD AD -->

PRIMARY COURSE TOPICS Fundamental equations and concepts Lesson 1: Governing equations and classification of flows Lesson 2: Comparing laminar and turbulent flows Lesson 3: Characterizing turbulent flowTheoretical concepts in turbulent flows Lesson 4: Time and energyFundamental concepts of turbulence modeling Lesson 5: Modeling approachesModeling turbulence in simulation Lesson 6: What do we know about turbulence modeling? Lesson 7: Deriving and modeling Reynolds stresses Lesson 8: Reynolds Stress Transport (RST) model Lesson 9: Introducing the eddy viscosity models Lesson 10: Modeling Reynolds stresses using the Spalart-Allmaras modelModeling turbulence using two-equation models Lesson 11: Modeling Reynolds stresses using the Standard k-Epsilon model Lesson 12: Modeling Reynolds stresses using the Realizable k-Epsilon model Lesson 13: Modeling Reynolds stresses using the k-Omega model Lesson 14: Limits of the eddy viscosity models Lesson 15: How to account for near wall turbulence effects? Lesson 16: The elliptic relaxation idea Lesson 17: Overview and summary of turbulence models in Simcenter STAR-CCM+Scale resolving simulations and transition modeling Lesson 18: Large eddy simulation model Lesson 19: DES: Mixing RANS and LES Lesson 20: From laminar to turbulent flow