2A). Alternatively, when the amount of exsolved gas is significant (Wallis, 1969) and when melt viscosity is low enough for bubbles to coalesce efficiently, large slugs of gas (sometimes referred to as “Taylor bubbles”) can form and, due to their lower density (thus large buoyancy), ...
With two points along the dividing streamline that divides the upstream flow from the source flow, we can evaluate and check the constant ψd associated with the Rankine nose and so find the formula for its geometry. Substituting either (r,θ) = (rstg, π) or (r,θ) = (rt, π/2)...
We used an old method of Archimedes’ principle of buoyancy telling; “Any object, when wholly or partially immersed in a fluid, is buoyed by a force equal to the weight of the fluid displaced by the object” (the volume is equal to the immersed volume of the body). This method is at...
Buoyancy effectInitial momentumFroude numberSevere accidentSome hydrogen mitigation study programs have been conducted to figure out the hydrogen distribution characteristics and provide useful information for codes development and validation. However, there is a lack of models with direct relations between ...
Front wings also work under physical constraints such as the ground effect, which also influences downforce, creating suction force [7]. For this reason, front wings have a large lift-to-drag ratio [5]. Therefore, the design of front wings is complex and obtaining an optimal element capable...
When particles flow in a flow field, they are primarily influenced by contact force (collision force and contact adhesion force), noncontact force (noncontact adhesion force), fluid force on particles (buoyancy force in vortex area, Brownian force, Saffman’s lift force, and thermophoresis force)...
Thermal energy is a new type of renewable energy that is currently being developed and utilized all over the world. Our country is rich in thermal energy resources. The marine environment of the South China Sea [1] provides excellent conditions for the development of marine thermal energy in th...
Its upper ocean circulation, along with that of the South China Sea, are driven by the subtropical gyre, tropical circulation from trade winds, shallow overturning circulation from buoyancy fluxes, and monsoon-driven circulation. These large-scale systems are further influenced by mesoscale and sub-...
The glider [2,3] achieves pose control by adjusting the remaining buoyancy and the position of the mass center, but its motion trajec- tory is jagged and single, speed is slow, and maneuverability is poor. Most autonomous underwater vehicles (AUVs) [4] are rigid single-body structures and...
Flow Equations The present model makes the following assumptions: (a) the vertical pressure distribution is hydrostatic; (b) the density variation impacts only the buoyancy force (Boussinesque assumption); and (c) the flow-sediment mixture is incompressible. We concern primarily with rivers and ...