ETIMOLOGIA DELLA PAROLA FROUDE NUMBER
Named after William Froude (1810–79), English civil engineer.
CHE SIGNIFICA FROUDE NUMBER IN INGLESE
Numero Froude
Il numero di Froude è un numero senza dimensione definito come il rapporto di una velocità caratteristica ad una velocità d'onda gravitazionale. Può essere definito equivalentemente come rapporto tra l'inerzia di un corpo e le forze gravitazionali. Nella meccanica del fluido, il numero di Froude viene utilizzato per determinare la resistenza di un oggetto parzialmente sommerso che si muove attraverso l'acqua e consente il confronto di oggetti di diversa grandezza. Chiamato da William Froude, il numero di Froude si basa sul rapporto di velocità definito da lui. Il numero di Froude è definito come: dove è una velocità caratteristica ed è una caratteristica velocità di propagazione dell'onda d'acqua. Il numero di Froude è quindi analogo al numero di Mach. Maggiore è il numero di Froude, maggiore è la resistenza.
definizione di Froude number nel dizionario inglese
La definizione di numero di Froude nel dizionario è un numero adimensionale utilizzato in idrodinamica per la simulazione del modello di condizioni reali.
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10 LIBRI IN INGLESE ASSOCIATI CON «FROUDE NUMBER»
Scopri l'uso di
Froude number nella seguente selezione bibliografica. Libri associati con
Froude number e piccoli estratti per contestualizzare il loro uso nella letteratura.
1
The Small
Froude Number Paradoxes and Wave Resistance at Low ...
Two basic asymptotic expansions of the equations of two-dimensional free-surface gravity flow past a body are first discussed: (i) the thin body, and (ii) the naive small Froude number expansions.
2
Chemical Engineering Reference Manual for the PE Exam
to the gravitational forces is the Froude number, Fr.38 The Froude number is
used when gravitational forces are significant, such as in wave motion produced
by a ship or seaplane hull. V2 I — 17.228 L9 Thus, similarity is ensured when
Eqs.
Michael R. Lindeburg, PE,
2012
3
Channel Flow Resistance: Centennial of Manning's Formula
In the middle subcritical flow range of the Froude number between 0.4 to 0.7, /.»
is a function of F, R, and d^/K as indicated in Eq. 9. In the low Froude number
range the effect of the Froude number becomes insignificant whereas dy,/ K is ...
4
Foundations of Biophilosophy
0.7<F<1.5 as transitional flows with a relatively unstable flow pattern that may be
easily disturbed, particularly for decelerating flows. Examples are undular
hydraulic jumps (chapter 7) and breakdown of shockwaves due to low Froude
number.
Martin Mahner, Mario Bunge,
1997
5
Introduction to PDEs and Waves for the Atmosphere and Ocean
We numerically integrated the equations in (8.30) for finite small Froude numbers
utilizing the laminar solutions in (8.33) of the low Froude number limiting
dynamics as basic states in (8.30) for a wide variety of strain and vertical vortic-
ity ...
6
Progress in Scale Modeling: Summary of the First ...
Froude-number scaling has been employed successfully for crib fires as well [8],
and it has been extended to the reconstruction of fire whirls for specific accident
scenarios [9]. It can work well for heat transfer in pool fires [10]. An attractive and
...
5.7.2 Froude Number Another way of determining whether a flow is sub- or super
-critical is to use the Froude Number (F). Returning to the airflow analogy for a
moment, aircraft designers use the Mach Number or Mach speed to describe ...
8
IUTAM Symposium on Scaling Laws in Ice Mechanics and Ice ...
The non- dimensional force was the actual force divided by the force measured at
0.01 m/s in the same ice sheet, where the velocity effect is negligible. The Froude
Number was calculated as V/(gh)05 where g is the gravitational constant.
J.P. Dempsey, H.H. Shen,
2001
9
Fluid Dynamics Analysis of Oscillating Flow in Petri Dishes
70 FIGURE 55 – Maximum Bottom Shear Stress versus Froude Number.................
...... 72 FIGURE 56 – Froude Number Data Comparison to Equations.......................
............ 72 ... 74 FIGURE 58 – Froude Number 0.12 Wall Shear Stress Contour.
Jonathan Michael D. Thomas,
2007
10
Hydraulics of Open Channel Flow
The Froude number is used for scaling open channel flows and free-surface
flows. 2. The length dcharac is the characteristic geometric dimension: internal
diameter of pipe for pipe flows, flow depth for open channel flow in a rectangular
...
8 NOTIZIE DOVE SI INCLUDE IL TERMINE «FROUDE NUMBER»
Vedi di che si parla nei media nazionali e internazionali e come viene utilizzato il termine ino
Froude number nel contesto delle seguenti notizie.
Fuel gain exceeding unity in an inertially confined fusion implosion
... and β2 are parameters of order unity whose exact values depend on a heat conduction scale-length parameter, ν, and the Froude number, . «Nature.com, feb 14»
Jellyfish may be the most energy-efficient animals in the world
To estimate the swimming efficiently of jellyfish (and other animals), researchers often calculate the Froude number, a dimensionless metric ... «io9, ott 13»
Relief flooding down the Valley of Mexico
The Froude number describes the ratio between inertia und gravity forces, therefore effects dominated by these forces can be transferred from ... «World Pumps, set 13»
Physicists rethink celebrated Kelvin wake pattern for ships
... Froude number (a relation between boat velocity and hull length) of roughly 0.5 as the transition point between the Kelvin and Mach regimes. «physicsworld.com, mag 13»
Lord Kelvin Wipes Out on Speed Boat Wakes?
Sure enough, the wake angle remained constant up to a certain speed—actually a certain "Froude number," which is a combination of boat's ... «Science AAAS, mag 13»
Watch This "Sprawl-Tuned" Insect Bot Skitter All Over The Place
STAR can run at 5.2m/s (43 body lengths/second, Froude number 9.8) over a smooth surface which makes it the fastest untethered crawling ... «IEEE Spectrum, feb 13»
How cats drink milk without getting their chins wet
Knowing the size and speed of the tongue, they were able to calculate a mathematical formula involving the Froude number – a dimensionless ... «Telegraph.co.uk, nov 10»
Missing pieces in the Ben Smart and Olivia Hope case
"Resistance caused by making these waves goes up slowly until the boat speed approaches the critical Froude number," says Philpott, ... «New Zealand Herald, apr 10»