In the home, water hammer may occur when a dishwasher, washing machine, or toilet shuts off water flow. The result may be heard as a loud bang, repetitive banging (as the shock wave travels back and forth in the plumbing system), or as some shuddering.o for a valve closing instantaneously, the maximum magnitude of the water hammer pulse is: where Î´ P is the magnitude of the pressure wave (Pa), Ï is the density of the fluid (kgm â3), a0 is the speed of sound in the fluid (ms â1), and Î´ v is the change in the fluid's velocity (ms â1).
CHKD - Children's Hospital of The King's Daughters, All Acronyms, viewed January 26, 2018, <https://www.allacronyms.com/CHKD/Children%27s_Hospital_of_The_King%27s_Daughters> mla All Acronyms.
Congenital heart disease (CHD) is a problem with the heart's structure and function that is present at birth. Congenital heart disease can describe a number of different problems affecting the heart. It is the most common type of birth defect. CHD causes more deaths in the first year of life than any other birth defects. Congenital heart disease is often divided into 2 types: cyanotic (blue skin color caused by a lack of oxygen) and non-cyanotic. The following lists cover the most common congenital heart diseases: Cyanotic: Ebstein's anomaly