Q:

Recommended Breathing Exercises to Play Woodwinds

Can you recommend good breathing exercises to play woodwinds such as Flute and Bansuri.
Other than continual practice of these beautiful instruments, what are some breathing exercises to improve lung capacity?

A:

First, a warning:  the best way to improve breath control is by playing long-tones on the instrument. WIthout this, you don't hear the tone quality (or lack thereof) in relationship to breath control.  
The next-best exercise is to train yourself to breath "down to the diaphragm" at all times, regardless of what you're doing.  This means making your upper abdominal area expand first, rather than the top of your chest/shoulders.  Don't worry about exact pressure or length of each exhalation yet.  
Following that, do things like taking in a breath, getting your embouchure set (but no instrument involved), and exhaling for as long as you can while maintaining a set pressure.  This helps minimize the rate at which you force air into/across the instrument as well as learning how to hold a note for a long time. 

A:

The most famous systematized breathing system is The Breathing Gym developed by the late Sam Pilafian and Pat Sheridan. A quick Internet search should give you plenty of sample exercises, some straight from this set and others adapted from it.
In terms of exercises to "improve lung capacity," a common exercise is to breathe in (either measured, over eight counts or so, or at your own pace) and hold it. But try to not "hold in" your breath by closing your throat; keep relaxed and leave your throat open. Stretch around, and every few seconds take a "sip" of breath to keep your lungs full. After a set period, slowly exhale (again, preferably measured over a determined number of beats to mimic a musical scenario).
But definitely be careful when doing this, and start slow and build up. I've seen plenty of learning musicians faint when they push themselves too hard.

A:

Background: I studied flute from when I was young and through conservatory. Played professionally as a freelance classical musician for a little while afterwards.
With a little bit of distance I can say that much of what I was taught about breathing, and "lung capacity", etc. is nonsense. In fact I'm having trouble finding any credible information that suggests a person can alter their own lung capacity in any significant way by doing exercises for instance.
Instead I would focus on exercises on the flute (which any competent teacher should be able to help you with); these include basic long tones with all sorts of variations.
What you're trying to achieve is:

total control over the tone, intonation, volume, at every point in your breath (hardest when your lungs are empty and totally full)
tolerance for lack of oxygen as you play (aerobic exercise might help here)
conservation of your breath: this is huge especially on flute where you don't have the resistance of a reed for instance. It's easy to lose air in all sorts of ways (unfocused embouchure, or subconsciously exhaling because it's difficulty or unfomfortable to play with full lungs)
the ability to take full, efficient breaths

IMHO all of these are practiced and improved most efficiently by just playing (and practicing thoughtfully).
Also I would take any advice about how you should breathe or what a good breath should feel like with a big grain of salt. Our bodies are all quite different and flutists are not experts in anatomy.

