It is derived from fluid dynamics.

Aerodynamics is a subfield of fluid dynamics and gas dynamics, with much theory shared between them.

During this time, the groundwork was laid down for modern day fluid dynamics and aerodynamics, with other less scientifically-inclined enthusiasts testing various flying machines with little success.

Image showing shock waves from NASA's X-43A hypersonic research vehicle in flight at Mach 7, generated using a computational fluid dynamics algorithm. On September 30, 1935 an exclusive conference was held in Rome with the topic of high velocity flight and the possibility of breaking the sound barrier.

Computational fluid dynamics was started as an effort to solve for flow properties around complex objects and has rapidly grown to the point where entire aircraft can be designed using a computer, with wind-tunnel tests followed by flight tests to confirm the computer predictions.

In fluid dynamics, the continuity equation is analogous to Kirchhoff's Current Law in electric circuits.

This case is called Potential flow and allows the differential equations used to be a simplified version of the governing equations of fluid dynamics, thus making available to the aerodynamicist a range of quick and easy solutions.

Whole blood ( plasma and cells ) exhibits non-Newtonian fluid dynamics ; its flow properties are adapted to flow effectively through tiny capillary blood vessels with less resistance than plasma by itself.

) In fluid dynamics, such a vector field is a potential flow.

Presented in 1915 by Wolfgang Gaede and using mercury vapor, they were the first type of high vacuum pumps operating in the regime of free molecular flow, where the movement of the gas molecules can be better understood as diffusion than by conventional fluid dynamics.

That is, because the continuum assumptions of fluid dynamics no longer apply, mass transport is governed by molecular dynamics rather than fluid dynamics.

** Fluid dynamics or hydrodynamics, the study of fluid flow

*** Computational fluid dynamics, a way of studying fluid dynamics using numerical methods

* Dispersive mass transfer, in fluid dynamics, the spreading of mass from areas of high to low concentration

The objectives of the Centre shall be to develop, and operate on a regular basis, global models and data-assimilation systems for the dynamics, thermodynamics and composition of the Earth's fluid envelope and interacting parts of the Earth-system, with a view to preparing forecasts by means of numerical methods, providing initial conditions for the forecasts, and contributing to monitoring the relevant parts of the Earth-system.

The study of fluids is fluid mechanics, which is subdivided into fluid dynamics and fluid statics depending on whether the fluid is in motion.

In 1805, Thomas Young defined the contact angle θ by analyzing the forces acting on a fluid droplet resting on a solid surface surrounded by a gas.

In fluid dynamics, a stall is a reduction in the lift coefficient generated by a foil as angle of attack increases.

The critical angle of attack is typically about 15 degrees, but it may vary significantly depending on the fluid, foil, and Reynolds number.

The 30 ° angle of the escalators was discovered to be crucial to the incident and the large number of casualties in the fire was an indirect consequence of a fluid flow phenomenon that was later named the trench effect ; this phenomenon was completely unknown prior to the fire.

The reflection and transmission coefficients, which govern the amplitude of each reflection, vary with angle of incidence and can be used to obtain information about ( among many other things ) the fluid content of the rock.

A lens group may be shifted, or the angle of a fluid filled prism may be changed.

If it is at a sharp angle, a large volume of fluid will be pumped.

This finding must be distinguished from blunting of the costophrenic angle, which may or may not represent a small amount of fluid within the pleural space ( except in children when even minor blunting must be considered a finding that can suggest active TB ).

The two other openings of the fourth ventricle are lateral apertures ( foramina of Luschka ), one on the left and one on the right, which drain cerebrospinal fluid into the cerebellopontine angle cistern.

A foil is a solid object with a shape such that when placed in a moving fluid at a suitable angle of attack the lift ( force generated perpendicular to the fluid flow ) is substantially larger than the drag ( force generated parallel the fluid flow ).

When oriented at a suitable angle, the foil deflects the oncoming fluid, resulting in a force on the foil in the direction opposite to the deflection.

When set at an angle ( the angle of attack ) to the flow the plate will deflect the fluid passing over and under it, and this deflection will result in a lift force on the plate.

The concepts of " Stop hits & stop kicks ", and " Simultaneous parrying & punching ", borrowed from épée fencing's and Wing Chun's concepts of single fluid motions which attack while defending, comprise the defensive teachings of JKD.

It also helps develop a sensitivity to attack and allows a fluid, centred response.

He suffered a heart attack in 1988, and would have suffered a severe heart attack at the beginning of 1992 caused by his lungs being filled with fluid, had it not been for the emergency team attending the Wimbledon theatre that night.

This most commonly results from an intercurrent illness ( such as pneumonia ), myocardial infarction ( a heart attack ), arrhythmias, uncontrolled hypertension, or a patient's failure to maintain a fluid restriction, diet, or medication.

During the attack the briefcase is struck by a bullet, causing a display on it to begin counting down, and it to leak an unknown fluid from the bullet hole.

* Left ventricular failure may be due to a heart attack leading to arrhythmias ( tachycardia / fast heartbeat or bradycardia / slow heartbeat ) and fluid overload, e. g., from kidney failure or intravenous therapy which may cause dilatation and failure of the left ventricle or may cause pulmonary edema in the absence of heart failure.

* Angle of attack, a measure of a body through a fluid

* Angle of attack, a measure of a body through a fluid

Renshaw plots to attack the soldiers with a Molotov cocktail constructed from a bottle of lighter fluid, but before the cocktail detonates the entire apartment explodes, and kills him.

Other changes over the Tekken 4 design included the removal of the positional change techniques ( throws were once again controlled by combinations of LP + LK or RP + RK instead of designating LP + LK as a position switch maneuver ; only Steve Fox was given a position change attack ), bringing back traditional air combat ( Tekken 4 removed back and vertical leaps in favor of a more fluid 3D combat model ) and using a juggle system more akin to Tekken 3 as opposed to the 4th game's less juggle-friendly gameplay.

His lungs had filled with fluid, and he died of a heart attack at 4: 55 a. m. on July 22, 1990.

Baby Tankers attack with a corrosive spray from a tube on their head like their adult counterparts, with the added function of spitting the fluid in smaller globs over long distances.

However, in severe cases the fluid loss can lead to potentially life-threatening salt imbalances and extremely high blood pressure often develops during an attack.