The phrase "large flow of" is correct and can be used in written English.
It is typically used to describe a high amount or volume of something that is moving or being transferred. Example: The new factory was designed to handle a large flow of raw materials, allowing them to increase production capacity by 50%.
The 1980's amnesty also attracted a large flow of illegal relatives of those workers who became newly legal.
Smugglers have also warned that it is impossible to completely curb such a large flow of refugees.
But when the border was sealed, Cambridge Energy says, that large flow of power had nowhere to go, and it sparked the abrupt New York shutdown.
Among these is the large flow of money from hedge funds, many of them betting for months on higher oil prices.
"Italy has been left alone now, for more than eight months, to cope with the exceptionally large flow of migrants from North Africa to Europe.
"This large flow of workers will impact working Americans significantly," Mr. Sessions said, adding that the immigrants would lower salaries and compete for jobs.
Rich countries, too, with many migrants abroad, benefit from large flows of remittances.
Stir in the unexpectedly large flows of refugees from the Middle East and North Africa, and you have a toxic mix.
The new architecture of travel might be aligned with a set of switches for screening and sorting of large flows of people and baggage.
During the years of cheap money on the back of vast QE programmes in advanced economies, there were large flows of funds to developing economies.
Large flows of money into and then out of these funds, and significant losses in technology and telecommunications stocks have led to millions of dollars in capital losses.
