Spatial gradient

Pressure gradient

In atmospheric science, the pressure gradient (typically of air but more generally of any fluid) is a physical quantity that describes in which direction and at what rate the pressure increases the most rapidly around a particular location. The pressure gradient is a dimensional quantity expressed in units of pascals per metre (Pa/m). Mathematically, it is the gradient of pressure as a function of position. The negative gradient of pressure is known as the force density. In petroleum geology and the petrochemical sciences pertaining to oil wells, and more specifically within hydrostatics, pressure gradients refer to the gradient of vertical pressure in a column of fluid within a wellbore and are generally expressed in pounds per square inch per foot (psi/ft). This column of fluid is subject to the compound pressure gradient of the overlying fluids. The path and geometry of the column is totally irrelevant; only the vertical depth of the column has any relevance to the vertical pressure of any point within its column and the pressure gradient for any given true vertical depth. (Wikipedia).

Video thumbnail

Absolute Pressure vs Gauge Pressure - Fluid Mechanics - Physics Problems

This physics video tutorial provides a basic introduction into absolute pressure and gauge pressure. The gauge pressure is the difference between the absolute pressure and the atmospheric pressure. A positive gauge pressure means the absolute pressure is above the atmospheric pressure.

From playlist New Physics Video Playlist

Video thumbnail

Astronomy - Ch. 9.1: Earth's Atmosphere (6 of 61) Atmospheric Temperature Gradient

Visit http://ilectureonline.com for more math and science lectures! In this video I will explain the various “layers” of Earth's atmosphere and it's various temperature gradient. I will explain why Earth's temperature decreases, stays constant, increases, stays constant, decreases, stays

From playlist THE GREENHOUSE EFFECT

Video thumbnail

Physics 33 - Fluid Statics (1 of 10) Pressure in a Fluid

Visit http://ilectureonline.com for more math and science lectures! In this video I will show you how to calculate the pressure of an object in a fluid.

From playlist MOST POPULAR VIDEOS

Video thumbnail

Astrophysics: Ch. 2 Star Equilibrium (7 of TBD) Pressure Gradient

Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We have found the equation for radiation pressure and hydrostatic equilibrium now we can find the pressure gradient. Previous video

From playlist ASTROPHYSICS 2 STAR EQUILIBRIUM

Video thumbnail

Physics 33 - Fluid Statics (2 of 10) Gauge Pressure VS Total Pressure

Visit http://ilectureonline.com for more math and science lectures! In this video I will explain and find the difference between gauge pressure and total pressure.

From playlist PHYSICS 33 FLUID STATICS

Video thumbnail

Difference between Thrust and Pressure? | Physics | Don't Memorise

This video explains the concepts of Thrust and Pressure. ✅To learn more about Gravitation, enroll in our full course now: https://infinitylearn.com/microcourses?utm_source=youtube&utm_medium=Soical&utm_campaign=DM&utm_content=UKl33k-qQ0k&utm_term=%7Bkeyword%7D In this video, we will lea

From playlist Physics

Video thumbnail

Introduction to Pressure & Fluids - Physics Practice Problems

This physics video tutorial provides a basic introduction into pressure and fluids. Pressure is force divided by area. The pressure due to weight of a fluid can be calculated by finding the product of the density of the fluid, the gravitational acceleration and the depth of the fluid. T

From playlist New Physics Video Playlist

Video thumbnail

Sect 8 3 #5 Hydrostatic Force, Calculus 2

Hydrostatic Force, Calculus 2 Calculus, Algebra and more at www.blackpenredpen.com Differential equation, factoring, linear equation, quadratic equation, derivatives, integrals, stewart calculus 7th edition, algebra.

From playlist Sect 8.3 Centroid & Hydrostatic Force

Video thumbnail

13. Global Climate and the Coriolis Force

The Atmosphere, the Ocean and Environmental Change (GG 140) The circulation in the atmosphere is composed of three circulation cells in the northern and southern hemispheres. These cells are caused by the rotation of the Earth which creates the Coriolis force. The Coriolis force defle

From playlist Atmosphere, Ocean and Environmental Change with Ron Smith

Video thumbnail

Higher Physics - more on relationships (and graphs)

Higher Physics - in this video, I answer another past paper question on relationships. I show how to draw a graph, calculate its gradient and, using that gradient, I calculate the density of a liquid. ----------------------------------------------------- Support the channel – you can bu

From playlist Higher - units, prefixes, uncertainties & relationships

Video thumbnail

Earth System Science 1: Intro to ESS. Lecture 12. Winds and Extreme Weather

UCI ESS 1: Introduction to Earth System Science (Fall 2013) Lec 12. Introduction to Earth System Science -- Winds and Extreme Weather -- View the complete course: http://ocw.uci.edu/courses/ess_1_introduction_to_earth_system_science.html Instructor: Julie Ferguson, Ph.D. License: Creative

From playlist Earth System Science 1: Introduction to Earth System Science

Video thumbnail

Bertrand Maury: Mathematics behind some phenomena in crowd motion: Stop and Go waves and...

Abstract: This minicourse aims at providing tentative explanations of some specific phenomena observed in the motion of crowds, or more generally collections of living entities. The first lecture shall focus on the so-called Stop and Go Waves, which sometimes spontaneously emerge and persi

From playlist Mathematical Physics

Video thumbnail

Bertrand Maury: Darcy problem and crowd motion modeling

Find this video and other talks given by worldwide mathematicians on CIRM's Audiovisual Mathematics Library: http://library.cirm-math.fr. And discover all its functionalities: - Chapter markers and keywords to watch the parts of your choice in the video - Videos enriched with abstracts, b

From playlist Mathematical Physics

Video thumbnail

Earth System Science 1: Intro to ESS. Lecture 13. Global Circulation Patterns

UCI ESS 1: Introduction to Earth System Science (Fall 2013) Lec 13. Introduction to Earth System Science -- Global Circulation Patterns -- View the complete course: http://ocw.uci.edu/courses/ess_1_introduction_to_earth_system_science.html Instructor: Julie Ferguson, Ph.D. License: Creati

From playlist Earth System Science 1: Introduction to Earth System Science

Video thumbnail

Engineering MAE 130A. Lecture 22. Intro to Fluid Mechanics

UCI Engineering MAE 130A: Intro to Fluid Mechanics (Fall 2013) Lec 22. Intro to Fluid Mechanics View the complete course: http://ocw.uci.edu/courses/engineering_mae_130a_intro_to_fluid_mechanics.html Instructor: Roger Rangel, Ph.D. License: Creative Commons CC-BY-SA Terms of Use: http://o

From playlist Engineering MAE 130A. Intro to Fluid Mechanics

Video thumbnail

Euler equations and Bernoulli equation

Lectures for Transport Phenomena course at Olin College. This video describes Euler's equations, Bernoulli's equation, and pressure changes across streamlines.

From playlist Lectures for Transport Phenomena course

Video thumbnail

Stress tensor in a Newtonian fluid

Lectures of Transport Phenomena course at Olin College The Newtonian stress tensor and connection to fluid kinematics.

From playlist Lectures for Transport Phenomena course

Video thumbnail

Pressure

Edexcel IGCSE Physics lesson on pressure

From playlist Edexecel IGCSE Physics

Related pages

Primitive equations | Norm (mathematics) | Temperature gradient | Metre | Force density | Gradient | Latitude | Pascal (unit) | Foot (unit)