The phrase "are driven by gravity" is correct and usable in written English.
It can be used in contexts discussing physical phenomena, such as the movement of objects or celestial bodies influenced by gravitational forces.
Example: "The planets in our solar system are driven by gravity, which keeps them in orbit around the sun."
Alternatives: "are influenced by gravity" or "are propelled by gravity."
Turbidity currents are particle-laden flows in the ocean that are driven by gravity (Meiburg and Kneller 2010).
Mergers are driven by gravity.
William Froude developed the Froude number in the context of his simulation of ships with the goal of creating similar wave patterns (Vaughan and O'Malley, 2005) with drag as the feature of importance (Langhaar, 1951), but his concept has been extended to other mechanical phenomena that are driven by gravity and inertia (Duncan, 1953).
When the pressure of the reactor and the boron tank balances, the borate water will be driven by gravity to flow into the reactor, and thus shut down the reactor.
The latter set of equations signifies that the reservoir flow is driven by gravity, pressure gradients, and viscous forces.
Such a shear can be driven by gravity waves (Hook, 1970; Jayachandran, 1991; Lanchester et al., 1991) or tidal motions (Chimmonas, 1971).
At middle and low latitudes, a comprehensive study by Whitehead (1989) has shown that the E region ionization enhancements can be formed due to vertical shear caused by opposite horizontal neutral winds, which in turn can be driven by gravity waves (Hook 1970; Lanchester et al. 1991; Jayachandran 1991) or tidal motions (Chimmonas 1971).
A saline superfusion system was used to exchange solutions during imaging; input was driven by gravity and output was obtained by suction from a fish tank pump (inverted flow).
Flow was driven by gravity.
Solenoid valves programmed using custom-written software (MATLAB) control whether medium with or without 1-NM-PP1 is delivered to each microfluidic channel and the flow (ca. 1 μL/s) is driven by gravity.
It should be noted that both dynamical and chemical transport are driven by relatively short wavelength gravity waves which are not resolved explicitly in general circulation models (this is discussed further in section 6.2).
