View Factors of Differential Areas
Taking the limit of a small flat surface gives differential areas, the view factor of two differential areas of areas and at a distance S is given by:
where and are the angle between the surface normals and a ray between the two differential areas.
The view factor from a general surface to another general surface is given by:
The view factor is related to the etendue.
Read more about this topic: View Factor
Famous quotes containing the words view, factors, differential and/or areas:
“Mine ear is much enamoured of thy note;
So is mine eye enthrallèd to thy shape;
And thy fair virtues force perforce doth move me
On the first view to say, to swear, I love thee.”
—William Shakespeare (15641616)
“Language makes it possible for a child to incorporate his parents verbal prohibitions, to make them part of himself....We dont speak of a conscience yet in the child who is just acquiring language, but we can see very clearly how language plays an indispensable role in the formation of conscience. In fact, the moral achievement of man, the whole complex of factors that go into the organization of conscience is very largely based upon language.”
—Selma H. Fraiberg (20th century)
“But how is one to make a scientist understand that there is something unalterably deranged about differential calculus, quantum theory, or the obscene and so inanely liturgical ordeals of the precession of the equinoxes.”
—Antonin Artaud (18961948)
“If a walker is indeed an individualist there is nowhere he cant go at dawn and not many places he cant go at noon. But just as it demeans life to live alongside a great river you can no longer swim in or drink from, to be crowded into safer areas and hours takes much of the gloss off walkingone sport you shouldnt have to reserve a time and a court for.”
—Edward Hoagland (b. 1932)