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WorksheetsASCHT2023 - Quiz&Prize Round 1
Total questions: 10
Worksheet time: 2hrs 40mins
Which of the following belongs to the cubic equation of state?
Ideal gas law
Peng-Robinson EoS
van der Waals EoS
Perturbed chain SAFT EoS
Which of the following scenarios is/are valid for using the Boussinesq approximation?
The Cooling of the alloy fluids
The two-phase flow with big density contrast ( air bubbles rise in water )
The reactive flow with violent heat releasing
The boiling heat transfer phenomenon
Which of the following theories or equations is / are based on the continuum assumption ?
Navier-stokes (NS) equation
Darcy's Law
Boltzmann equation
Molecular Dynamics Theory
For the transport process of subsurface radioactive pollutants, their pollution mechanisms include:
Advection
Molecular diffusion
Dispersion
Radiation
Which of the following dimensionless numbers contains information about surface tension?
Reynolds number, Re
Nunser number, Nu
Weber number, We
Knudsen number, Kn
Which of the following numerical methods is a mesh-based method?
Smoothed-particle hydrodynamics (SPH)
Finite element method (FEM)
Finite volume method (FVM)
Material point method (MPM)
Which of the following quantities is/are equilibrium property/properties instead of transport property/properties?
Interfacial tension
Contact angle
Solubility
Density
What is the computational complexity of the Gauss elimination method?
O(n)
O(n^2)
O(n^3)
O(log n)
Which of the following algorithms can be used to solve the Navier-Stokes equations and simulate incompressible flows?
Semi-Implicit Method for Pressure-Linked Equations (SIMPLE）
Maker and Cell (MAC)
Pressure-Implicit with Splitting of Operators (PISO)
Fractional-step method (FS)
Which of the following statements is/are correct?
The temperature in the inner core of the earth is about 5200 degree Celsius.
The temperature in the inner core of the earth is about 9300 degree Celsius.
The temperature at the very center of the Sun is about 15,000,000 degree Celsius.
The temperature on the moon can reach 210 degree Celsius during lunar daytime at the moon's equator.
