Table of Contents
What is Boussinesq equation used for?
The Boussinesq equation is non-linear, and it is used (mainly in research situations) to study non-linear wave effects in shallow water.
What is boussinesq coefficient?
Physically, the Boussinesq coefficient quantifies the momentum effect of the non-uniform velocity distribution over the depth. Because it appears in the advective acceleration term in the SWEs, it can also be treated as a pure numerical parameter to tune the amount of fluid inertia to be considered in the simulation.
What is Boussinesq approximation in natural convection?
In fluid dynamics, the Boussinesq approximation (pronounced [businɛsk], named for Joseph Valentin Boussinesq) is used in the field of buoyancy-driven flow (also known as natural convection). It ignores density differences except where they appear in terms multiplied by g, the acceleration due to gravity.
What is Boussinesq analysis?
The Boussinesq solution for the distribution of stresses in a half-space resulting from surface loads is largely used in geotechnical and road engineering. It is based on the assumption of a linear–elastic homogeneous isotropic half-space for the soil media.
What is Boussinesq hypothesis in turbulence modeling?
Boussinesq’s hypothesis is that the turbulent stresses are related to the mean velocity gradients in almost the same way that the viscous stresses are related to the complete velocity gradients.
What is Boussinesq approximation in turbulent flow?
The Boussinesq approximation is a way to solve nonisothermal flow, such as natural convection problems, without having to solve for the full compressible formulation of the Navier-Stokes equations.
What are the assumptions made in Boussinesq theory?
Boussinesq’s theory formula is based on following assumptions. The soil mass is semi-infinite, homogeneous and isotropic. The soil has a linear stress-strain relationship, The soil is weightless.
What is the approximate value which can be taken as void ratio occupied by adsorbed water?
According to approximation value after casagrande, 0.1 may be taken as the void ratio occupied by adsorbed water.
When the ratio of R Z equals to 0.5 the Boussinesq influence factor is of the maximum?
57%
When the ratio of r/z equals to 0.5, the Boussinesq influence factor is ________ of the maximum. ∴ the Boussinesq influence factor is 0.2733/0.4775*100=57% of the maximum.
When the ratio of r z equals to 0.5 the Boussinesq?
When the ratio of r/z equals to 0.5, the Boussinesq influence factor is ________ of the maximum. ∴ the Boussinesq influence factor is 0.2733/0.4775*100=57% of the maximum.
When the ratio of r z equals to 1 the Boussinesq influence factor is?
17.7%
When the ratio of r/z equals to 1, the Boussinesq influence factor is ________ of the maximum. ∴ the Boussinesq influence factor is 0.0844/0.4775*100=17.7% of the maximum.
What is Boussinesq approximation in fluid dynamics?
In fluid dynamics, the Boussinesq approximation for water waves is an approximation valid for weakly non-linear and fairly long waves. The approximation is named after Joseph Boussinesq, who first derived them in response to the observation by John Scott Russell of the wave of translation (also known as solitary wave or soliton).
What is a Boussinesq equation for water waves?
The Boussinesq approximation for water waves takes into account the vertical structure of the horizontal and vertical flow velocity. This results in non-linear partial differential equations, called Boussinesq-type equations, which incorporate frequency dispersion (as opposite to the shallow water equations, which are not frequency-dispersive).
How are Boussinesq equations used in coastal engineering?
In coastal engineering, Boussinesq-type equations are frequently used in computer models for the simulation of water waves in shallow seas and harbours .
What is the continuity equation for Boussinesq?
In the Boussinesq approximation, variations in fluid properties other than density ρ are ignored, and density only appears when it is multiplied by g, the gravitational acceleration. : 127–128 If u is the local velocity of a parcel of fluid, the continuity equation for conservation of mass is : 52