Euler and lagrange frame of reference

AI Thread Summary
The Lagrangian frame of reference focuses on tracking individual particles and their trajectories, such as calculating the motion of a projectile in the XY plane. In contrast, the Eulerian frame examines specific points in space, analyzing parameters like velocity and pressure at various cross-sections, such as in a variable section channel. The Lagrangian approach emphasizes the motion of the mass itself, while the Eulerian approach emphasizes the flow characteristics at fixed locations. Understanding these distinctions is crucial for applying the correct method in fluid dynamics and mechanics. Both frames serve different purposes depending on the problem being analyzed.
jason.bourne
Messages
82
Reaction score
1
can anybody please clearly explain me the difference between these two frames of reference with few examples.

my exames are closing up. please help me.
 
Engineering news on Phys.org
Lagrangian description - while calculating the trajectory of a projectile, you calculate all the parameters for the point mass moving in XY plane, that is Lagrangian description.

Eulerian description - while solving a problem of continuity in a variable section channel, you calculate(velocity, pressure etc) all the parameters on various cross sections(or points), that is eulerian description of frame
 

Thread 'Race car suspension Class'

Posted June 2024 - 15 years after starting this class. I have learned a whole lot. To get to the short course on making your stock car, late model, hobby stock E-mod handle, look at the index below. Read all posts on Roll Center, Jacking effect and Why does car drive straight to the wall when I gas it? Also read You really have two race cars. This will cover 90% of problems you have. Simply put, the car pushes going in and is loose coming out. You do not have enuff downforce on the right...
View full post »
Thread 'Physics of Stretch: What pressure does a band apply on a cylinder?'

Thread 'Physics of Stretch: What pressure does a band apply on a cylinder?'

Scenario 1 (figure 1) A continuous loop of elastic material is stretched around two metal bars. The top bar is attached to a load cell that reads force. The lower bar can be moved downwards to stretch the elastic material. The lower bar is moved downwards until the two bars are 1190mm apart, stretching the elastic material. The bars are 5mm thick, so the total internal loop length is 1200mm (1190mm + 5mm + 5mm). At this level of stretch, the load cell reads 45N tensile force. Key numbers...
View full post »

Thread 'Cantilever help'

I'm trying to decide what size and type of galvanized steel I need for 2 cantilever extensions. The cantilever is 5 ft. The space between the two cantilever arms is a 17 ft Gap the center 7 ft of the 17 ft Gap we'll need to Bear approximately 17,000 lb spread evenly from the front of the cantilever to the back of the cantilever over 5 ft. I will put support beams across these cantilever arms to support the load evenly
View full post »

Similar threads

Gyroscopic effect in quadcopters
Replies
13
Views
3K
I Using reference frames for derivation of Lagrangian
Replies
25
Views
2K
Covariant Euler-Lagrange Computation
Replies
6
Views
2K
I Energy and reference frames
2
Replies
87
Views
4K
Rotation matrix of three intrinsic rotations
Replies
3
Views
995
I Transformation Riemann tensor to an accelerating frame
Replies
10
Views
1K
Do Streamlines Change Shape Depending on Frame of Reference in Fluid Dynamics?
Replies
7
Views
2K
I Landau's inertial frame logic
Replies
1
Views
1K
I Locally Inertial Frames: Freefall & Relative Velocities
Replies
26
Views
2K
I Is an accelerating frame the same as an inertial frame at a point?
Replies
11
Views
2K

Hot Threads

Recent Insights

Back
Top